{"id":623583,"date":"2026-11-13T10:02:43","date_gmt":"2026-11-13T03:02:43","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=623583"},"modified":"2026-11-13T10:02:43","modified_gmt":"2026-11-13T03:02:43","slug":"cach-bam-xac-suat-tren-casio-580","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/cach-bam-xac-suat-tren-casio-580\/","title":{"rendered":"C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio 580 chi ti\u1ebft nh\u1ea5t"},"content":{"rendered":"<p><strong>\u0110\u1ec3 b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio fx-580VN X, b\u1ea1n d\u00f9ng 3 ph\u00edm ch\u00ednh: SHIFT + x\u207b\u00b9 \u0111\u1ec3 t\u00ednh giai th\u1eeba (x!), SHIFT + \u00d7 \u0111\u1ec3 t\u00ednh ch\u1ec9nh h\u1ee3p (nPr) v\u00e0 SHIFT + \u00f7 \u0111\u1ec3 t\u00ednh t\u1ed5 h\u1ee3p (nCr). V\u00ed d\u1ee5, 10C3 b\u1ea5m l\u00e0 10 SHIFT \u00f7 3 = v\u00e0 ra k\u1ebft qu\u1ea3 120.<\/strong> V\u1edbi b\u00e0i to\u00e1n ph\u00e2n ph\u1ed1i nh\u1ecb th\u1ee9c, ph\u00e2n ph\u1ed1i chu\u1ea9n, b\u1ea1n v\u00e0o ch\u1ebf \u0111\u1ed9 Ph\u00e2n ph\u1ed1i (Distribution) trong MENU. B\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn t\u1eebng ph\u00edm, v\u00ed d\u1ee5 c\u00f3 k\u1ebft qu\u1ea3 v\u00e0 m\u1eb9o tr\u00e1nh b\u1ea5m sai.<\/p>\n<p><strong>T\u00f3m t\u1eaft nhanh:<\/strong><\/p>\n<ul>\n<li><strong>Giai th\u1eeba n!:<\/strong> nh\u1eadp n \u2192 SHIFT \u2192 x\u207b\u00b9 \u2192 =.<\/li>\n<li><strong>Ch\u1ec9nh h\u1ee3p nPr:<\/strong> nh\u1eadp n \u2192 SHIFT \u2192 \u00d7 \u2192 nh\u1eadp r \u2192 =.<\/li>\n<li><strong>T\u1ed5 h\u1ee3p nCr:<\/strong> nh\u1eadp n \u2192 SHIFT \u2192 \u00f7 \u2192 nh\u1eadp r \u2192 =.<\/li>\n<li><strong>Ph\u00e2n ph\u1ed1i nh\u1ecb th\u1ee9c, chu\u1ea9n, Poisson:<\/strong> MENU \u2192 ch\u1ecdn \u1ee9ng d\u1ee5ng Ph\u00e2n ph\u1ed1i (Distribution).<\/li>\n<\/ul>\n<h2>C\u00e1c ph\u00edm x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio fx-580VN X<\/h2>\n<p>C\u00e1c h\u00e0m t\u1ed5 h\u1ee3p, ch\u1ec9nh h\u1ee3p v\u00e0 giai th\u1eeba \u0111\u1ec1u l\u00e0 ch\u1ee9c n\u0103ng ph\u1ee5 (m\u00e0u v\u00e0ng) in ph\u00eda tr\u00ean ph\u00edm, n\u00ean b\u1ea1n ph\u1ea3i nh\u1ea5n SHIFT tr\u01b0\u1edbc.<\/p>\n<table>\n<thead>\n<tr>\n<th>Ph\u00e9p t\u00ednh<\/th>\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>C\u00e1ch b\u1ea5m<\/th>\n<th>V\u00ed d\u1ee5<\/th>\n<th>K\u1ebft qu\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Giai th\u1eeba<\/td>\n<td>n!<\/td>\n<td>n SHIFT x\u207b\u00b9 =<\/td>\n<td>5!<\/td>\n<td>120<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ec9nh h\u1ee3p<\/td>\n<td>nPr (A\u2099\u02b3)<\/td>\n<td>n SHIFT \u00d7 r =<\/td>\n<td>10P3<\/td>\n<td>720<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed5 h\u1ee3p<\/td>\n<td>nCr (C\u2099\u02b3)<\/td>\n<td>n SHIFT \u00f7 r =<\/td>\n<td>10C3<\/td>\n<td>120<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ho\u00e1n v\u1ecb c\u1ee7a n ph\u1ea7n t\u1eed ch\u00ednh l\u00e0 n!, n\u00ean b\u1ea1n d\u00f9ng ph\u00edm giai th\u1eeba. C\u00f4ng th\u1ee9c v\u00e0 \u00fd ngh\u0129a c\u1ee7a t\u1eebng kh\u00e1i ni\u1ec7m \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y trong b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cong-thuc-to-hop-chinh-hop\/\">c\u00f4ng th\u1ee9c ho\u00e1n v\u1ecb, ch\u1ec9nh h\u1ee3p, t\u1ed5 h\u1ee3p<\/a>.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-623591\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-2.jpg\" alt=\"cach-bam-xac-suat-tren-casio-580-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e1ch b\u1ea5m giai th\u1eeba tr\u00ean Casio 580<\/h2>\n<p>V\u00ed d\u1ee5: t\u00ednh 5!.<\/p>\n<ol>\n<li>Nh\u1eadp s\u1ed1 <strong>5<\/strong>.<\/li>\n<li>Nh\u1ea5n <strong>SHIFT<\/strong>, sau \u0111\u00f3 nh\u1ea5n ph\u00edm <strong>x\u207b\u00b9<\/strong> (m\u00e0n h\u00ecnh hi\u1ec7n 5!).<\/li>\n<li>Nh\u1ea5n <strong>=<\/strong>, k\u1ebft qu\u1ea3 l\u00e0 <strong>120<\/strong>.<\/li>\n<\/ol>\n<p>N\u1ebfu ch\u01b0a n\u1eafm r\u00f5 \u0111\u1ecbnh ngh\u0129a, b\u1ea1n xem th\u00eam b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/giai-thua-la-gi\/\">giai th\u1eeba l\u00e0 g\u00ec<\/a>. Giai th\u1eeba c\u00f2n d\u00f9ng trong bi\u1ec3u th\u1ee9c, v\u00ed d\u1ee5 (5 + 3)! nh\u1eadp l\u00e0 ( 5 + 3 ) SHIFT x\u207b\u00b9 = cho k\u1ebft qu\u1ea3 40320. L\u01b0u \u00fd m\u00e1y ch\u1ec9 t\u00ednh giai th\u1eeba v\u1edbi s\u1ed1 nguy\u00ean t\u1eeb 0 \u0111\u1ebfn 69; s\u1ed1 l\u1edbn h\u01a1n s\u1ebd b\u00e1o l\u1ed7i v\u00ec v\u01b0\u1ee3t qu\u00e1 ph\u1ea1m vi hi\u1ec3n th\u1ecb.<\/p>\n<h2>C\u00e1ch b\u1ea5m ch\u1ec9nh h\u1ee3p (nPr) tr\u00ean Casio 580<\/h2>\n<p>Ch\u1ec9nh h\u1ee3p ch\u1eadp r c\u1ee7a n ph\u1ea7n t\u1eed d\u00f9ng khi ch\u1ecdn r ph\u1ea7n t\u1eed t\u1eeb n ph\u1ea7n t\u1eed <strong>c\u00f3 th\u1ee9 t\u1ef1<\/strong>.<\/p>\n<p><strong>V\u00ed d\u1ee5:<\/strong> C\u00f3 7 h\u1ecdc sinh, ch\u1ecdn 4 b\u1ea1n x\u1ebfp v\u00e0o 4 v\u1ecb tr\u00ed l\u1edbp tr\u01b0\u1edfng, l\u1edbp ph\u00f3 h\u1ecdc t\u1eadp, l\u1edbp ph\u00f3 v\u0103n ngh\u1ec7, th\u1ee7 qu\u1ef9. H\u1ecfi c\u00f3 bao nhi\u00eau c\u00e1ch?<\/p>\n<ul>\n<li>\u0110\u00e2y l\u00e0 ch\u1ec9nh h\u1ee3p ch\u1eadp 4 c\u1ee7a 7: b\u1ea5m <strong>7 SHIFT \u00d7 4 =<\/strong>.<\/li>\n<li>K\u1ebft qu\u1ea3: <strong>840<\/strong> c\u00e1ch.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-623593\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-3.jpg\" alt=\"cach-bam-xac-suat-tren-casio-580-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e1ch b\u1ea5m t\u1ed5 h\u1ee3p (nCr) tr\u00ean Casio 580<\/h2>\n<p>T\u1ed5 h\u1ee3p ch\u1eadp r c\u1ee7a n ph\u1ea7n t\u1eed d\u00f9ng khi ch\u1ecdn r ph\u1ea7n t\u1eed t\u1eeb n ph\u1ea7n t\u1eed <strong>kh\u00f4ng quan t\u00e2m th\u1ee9 t\u1ef1<\/strong>.<\/p>\n<p><strong>V\u00ed d\u1ee5 1:<\/strong> Ch\u1ecdn 3 b\u1ea1n t\u1eeb 10 b\u1ea1n \u0111\u1ec3 \u0111i tr\u1ef1c nh\u1eadt.<\/p>\n<ul>\n<li>B\u1ea5m <strong>10 SHIFT \u00f7 3 =<\/strong>, k\u1ebft qu\u1ea3 <strong>120<\/strong> c\u00e1ch.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 2:<\/strong> M\u1ed9t l\u1edbp c\u00f3 40 h\u1ecdc sinh, trong \u0111\u00f3 15 n\u1eef. Ch\u1ecdn 4 h\u1ecdc sinh sao cho c\u00f3 \u00edt nh\u1ea5t 1 nam.<\/p>\n<ul>\n<li>S\u1ed1 c\u00e1ch = t\u1ed5ng s\u1ed1 c\u00e1ch ch\u1ecdn \u2212 s\u1ed1 c\u00e1ch ch\u1ecdn to\u00e0n n\u1eef = 40C4 \u2212 15C4.<\/li>\n<li>B\u1ea5m <strong>40 SHIFT \u00f7 4 \u2212 15 SHIFT \u00f7 4 =<\/strong>, k\u1ebft qu\u1ea3 <strong>90025<\/strong>.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-623592\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-1.jpg\" alt=\"cach-bam-xac-suat-tren-casio-580-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e1ch t\u00ednh x\u00e1c su\u1ea5t c\u1ed5 \u0111i\u1ec3n b\u1eb1ng m\u00e1y t\u00ednh Casio 580<\/h2>\n<p>X\u00e1c su\u1ea5t c\u1ed5 \u0111i\u1ec3n b\u1eb1ng s\u1ed1 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i chia cho t\u1ed5ng s\u1ed1 k\u1ebft qu\u1ea3: P(A) = n(A)\/n(\u03a9). B\u1ea1n c\u00f3 th\u1ec3 nh\u1eadp c\u1ea3 ph\u00e2n s\u1ed1 t\u1ed5 h\u1ee3p tr\u00ean m\u1ed9t d\u00f2ng.<\/p>\n<p><strong>V\u00ed d\u1ee5 3:<\/strong> H\u1ed9p c\u00f3 5 bi \u0111\u1ecf v\u00e0 3 bi xanh. L\u1ea5y ng\u1eabu nhi\u00ean 2 bi. T\u00ednh x\u00e1c su\u1ea5t l\u1ea5y \u0111\u01b0\u1ee3c 2 bi \u0111\u1ecf.<\/p>\n<ul>\n<li>P = 5C2 \/ 8C2. Nh\u1ea5n ph\u00edm ph\u00e2n s\u1ed1, nh\u1eadp <strong>5 SHIFT \u00f7 2<\/strong> \u1edf t\u1eed, <strong>8 SHIFT \u00f7 2<\/strong> \u1edf m\u1eabu r\u1ed3i nh\u1ea5n =.<\/li>\n<li>K\u1ebft qu\u1ea3: <strong>5\/14 \u2248 0,357<\/strong> (nh\u1ea5n S\u21d4D \u0111\u1ec3 \u0111\u1ed5i qua l\u1ea1i gi\u1eefa ph\u00e2n s\u1ed1 v\u00e0 s\u1ed1 th\u1eadp ph\u00e2n).<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 4:<\/strong> H\u1ed9p c\u00f3 6 bi \u0111\u1ecf, 4 bi xanh. L\u1ea5y ng\u1eabu nhi\u00ean 3 bi. T\u00ednh x\u00e1c su\u1ea5t c\u00f3 \u00edt nh\u1ea5t 1 bi xanh.<\/p>\n<ul>\n<li>D\u00f9ng bi\u1ebfn c\u1ed1 \u0111\u1ed1i: P = 1 \u2212 6C3\/10C3.<\/li>\n<li>B\u1ea5m <strong>1 \u2212 6 SHIFT \u00f7 3 \u00f7 ( 10 SHIFT \u00f7 3 ) =<\/strong>, k\u1ebft qu\u1ea3 <strong>5\/6 \u2248 0,833<\/strong>.<\/li>\n<\/ul>\n<p>M\u00e1y t\u00ednh Casio \u01b0u ti\u00ean t\u00ednh nCr, nPr tr\u01b0\u1edbc ph\u00e9p nh\u00e2n chia, nh\u01b0ng \u0111\u1eb7t ngo\u1eb7c cho m\u1eabu s\u1ed1 v\u1eabn l\u00e0 th\u00f3i quen t\u1ed1t \u0111\u1ec3 d\u1ec5 ki\u1ec3m tra l\u1ea1i. N\u1ebfu c\u1ea7n \u00f4n l\u1ea1i kh\u00e1i ni\u1ec7m bi\u1ebfn c\u1ed1, kh\u00f4ng gian m\u1eabu, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00eam b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/xac-suat-la-gi\/\">x\u00e1c su\u1ea5t l\u00e0 g\u00ec<\/a>.<\/p>\n<h2>C\u00e1ch t\u00ednh ph\u00e2n ph\u1ed1i nh\u1ecb th\u1ee9c tr\u00ean Casio 580<\/h2>\n<p>V\u1edbi b\u00e0i to\u00e1n l\u1eb7p l\u1ea1i ph\u00e9p th\u1eed \u0111\u1ed9c l\u1eadp, v\u00ed d\u1ee5 tung \u0111\u1ed3ng xu nhi\u1ec1u l\u1ea7n hay b\u1eafn n ph\u00e1t s\u00fang, b\u1ea1n d\u00f9ng ch\u1ebf \u0111\u1ed9 Ph\u00e2n ph\u1ed1i (Distribution).<\/p>\n<ol>\n<li>Nh\u1ea5n <strong>MENU<\/strong>, ch\u1ecdn bi\u1ec3u t\u01b0\u1ee3ng <strong>Ph\u00e2n ph\u1ed1i (Distribution)<\/strong> r\u1ed3i nh\u1ea5n =.<\/li>\n<li>Ch\u1ecdn <strong>Binomial PD<\/strong> (x\u00e1c su\u1ea5t t\u1ea1i m\u1ed9t gi\u00e1 tr\u1ecb x) ho\u1eb7c <strong>Binomial CD<\/strong> (x\u00e1c su\u1ea5t t\u00edch l\u0169y t\u1eeb 0 \u0111\u1ebfn x).<\/li>\n<li>Ch\u1ecdn nh\u1eadp m\u1ed9t bi\u1ebfn (Variable), sau \u0111\u00f3 nh\u1eadp l\u1ea7n l\u01b0\u1ee3t <strong>x<\/strong>, <strong>N<\/strong> (s\u1ed1 ph\u00e9p th\u1eed) v\u00e0 <strong>p<\/strong> (x\u00e1c su\u1ea5t th\u00e0nh c\u00f4ng), nh\u1ea5n = sau m\u1ed7i gi\u00e1 tr\u1ecb.<\/li>\n<li>Nh\u1ea5n = \u0111\u1ec3 xem k\u1ebft qu\u1ea3.<\/li>\n<\/ol>\n<p><strong>V\u00ed d\u1ee5 5:<\/strong> M\u1ed9t x\u1ea1 th\u1ee7 b\u1eafn 15 ph\u00e1t, x\u00e1c su\u1ea5t tr\u00fang m\u1ed7i ph\u00e1t l\u00e0 0,6. T\u00ednh x\u00e1c su\u1ea5t tr\u00fang \u0111\u00fang 10 ph\u00e1t.<\/p>\n<ul>\n<li>Ch\u1ecdn Binomial PD, nh\u1eadp x = 10, N = 15, p = 0,6.<\/li>\n<li>K\u1ebft qu\u1ea3: <strong>\u2248 0,18594<\/strong>. Con s\u1ed1 n\u00e0y tr\u00f9ng v\u1edbi c\u00f4ng th\u1ee9c C\u2081\u2085\u00b9\u2070 \u00b7 0,6\u00b9\u2070 \u00b7 0,4\u2075.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 6:<\/strong> Tung m\u1ed9t \u0111\u1ed3ng xu c\u00e2n \u0111\u1ed1i 10 l\u1ea7n. T\u00ednh x\u00e1c su\u1ea5t c\u00f3 nhi\u1ec1u nh\u1ea5t 2 l\u1ea7n ng\u1eeda.<\/p>\n<ul>\n<li>&#8220;Nhi\u1ec1u nh\u1ea5t 2 l\u1ea7n&#8221; l\u00e0 x\u00e1c su\u1ea5t t\u00edch l\u0169y P(X \u2264 2), n\u00ean ch\u1ecdn <strong>Binomial CD<\/strong>, nh\u1eadp x = 2, N = 10, p = 0,5.<\/li>\n<li>K\u1ebft qu\u1ea3: <strong>\u2248 0,05469<\/strong>. Ki\u1ec3m tra b\u1eb1ng tay: (C\u2081\u2080\u2070 + C\u2081\u2080\u00b9 + C\u2081\u2080\u00b2)\/2\u00b9\u2070 = (1 + 10 + 45)\/1024 = 56\/1024 \u2248 0,0547.<\/li>\n<\/ul>\n<p>M\u1eb9o nh\u1ecf: v\u1edbi c\u00e2u h\u1ecfi &#8220;\u00edt nh\u1ea5t k l\u1ea7n&#8221;, b\u1ea1n l\u1ea5y 1 tr\u1eeb k\u1ebft qu\u1ea3 Binomial CD t\u1ea1i x = k \u2212 1.<\/p>\n<p>Ch\u1ebf \u0111\u1ed9 Ph\u00e2n ph\u1ed1i c\u00f2n c\u00f3 Normal PD, Normal CD, Inverse Normal (ph\u00e2n ph\u1ed1i chu\u1ea9n) v\u00e0 Poisson PD, Poisson CD. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c ph\u00e9p t\u00ednh ph\u00e2n ph\u1ed1i l\u00e0 6 ch\u1eef s\u1ed1 c\u00f3 ngh\u0129a.<\/p>\n<h2>B\u00e0i t\u1eadp t\u1ef1 luy\u1ec7n b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean Casio 580<\/h2>\n<p>B\u1ea1n h\u00e3y t\u1ef1 b\u1ea5m m\u00e1y r\u1ed3i so v\u1edbi \u0111\u00e1p \u00e1n.<\/p>\n<table>\n<thead>\n<tr>\n<th>B\u00e0i<\/th>\n<th>Ph\u00e9p t\u00ednh<\/th>\n<th>C\u00e1ch b\u1ea5m<\/th>\n<th>\u0110\u00e1p \u00e1n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>6!<\/td>\n<td>6 SHIFT x\u207b\u00b9 =<\/td>\n<td>720<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>8P3<\/td>\n<td>8 SHIFT \u00d7 3 =<\/td>\n<td>336<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>12C4<\/td>\n<td>12 SHIFT \u00f7 4 =<\/td>\n<td>495<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>S\u1ed1 c\u00e1ch ch\u1ecdn 5 l\u00e1 t\u1eeb b\u1ed9 b\u00e0i 52 l\u00e1<\/td>\n<td>52 SHIFT \u00f7 5 =<\/td>\n<td>2598960<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Tung \u0111\u1ed3ng xu 10 l\u1ea7n, P(\u0111\u00fang 3 l\u1ea7n ng\u1eeda)<\/td>\n<td>Binomial PD: x = 3, N = 10, p = 0,5<\/td>\n<td>\u2248 0,11719<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L\u1ed7i th\u01b0\u1eddng g\u1eb7p khi b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean Casio 580<\/h2>\n<ul>\n<li><strong>Math ERROR:<\/strong> nh\u1eadp r l\u1edbn h\u01a1n n (v\u00ed d\u1ee5 3C5), n ho\u1eb7c r kh\u00f4ng ph\u1ea3i s\u1ed1 nguy\u00ean, ho\u1eb7c t\u00ednh giai th\u1eeba c\u1ee7a s\u1ed1 \u00e2m, s\u1ed1 th\u1eadp ph\u00e2n. Theo h\u01b0\u1edbng d\u1eabn c\u1ee7a Casio, nPr v\u00e0 nCr ch\u1ec9 nh\u1eadn s\u1ed1 nguy\u00ean th\u1ecfa 0 \u2264 r \u2264 n &lt; 10\u00b9\u2070.<\/li>\n<li><strong>Nh\u1ea7m ph\u00edm nh\u00e2n v\u00e0 chia:<\/strong> SHIFT \u00d7 l\u00e0 ch\u1ec9nh h\u1ee3p (c\u00f3 th\u1ee9 t\u1ef1), SHIFT \u00f7 l\u00e0 t\u1ed5 h\u1ee3p (kh\u00f4ng th\u1ee9 t\u1ef1). K\u1ebft qu\u1ea3 10P3 = 720 nh\u01b0ng 10C3 ch\u1ec9 l\u00e0 120.<\/li>\n<li><strong>\u0110ang \u1edf sai ch\u1ebf \u0111\u1ed9:<\/strong> n\u1ebfu m\u00e1y \u0111ang \u1edf \u1ee9ng d\u1ee5ng kh\u00e1c (Th\u1ed1ng k\u00ea, Ph\u01b0\u01a1ng tr\u00ecnh\u2026), h\u00e3y nh\u1ea5n MENU v\u00e0 ch\u1ecdn T\u00ednh to\u00e1n (Calculate) tr\u01b0\u1edbc khi b\u1ea5m t\u1ed5 h\u1ee3p, ch\u1ec9nh h\u1ee3p.<\/li>\n<li><strong>K\u1ebft qu\u1ea3 hi\u1ec7n d\u1ea1ng ph\u00e2n s\u1ed1 khi c\u1ea7n s\u1ed1 th\u1eadp ph\u00e2n:<\/strong> nh\u1ea5n S\u21d4D \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i.<\/li>\n<\/ul>\n<p>N\u1ebfu \u0111ang ph\u00e2n v\u00e2n ch\u1ecdn m\u00e1y t\u00ednh c\u1ea7m tay cho k\u1ef3 thi, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o b\u00e0i t\u1ed5ng h\u1ee3p t\u00ednh n\u0103ng <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/may-tinh-580\/\">m\u00e1y t\u00ednh Casio fx-580VN X<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-623594\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-4.jpg\" alt=\"cach-bam-xac-suat-tren-casio-580-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/11\/cach-bam-xac-suat-tren-casio-580-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 c\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean Casio 580<\/h2>\n<h3>C\u00e1ch b\u1ea5m t\u1ed5 h\u1ee3p tr\u00ean m\u00e1y t\u00ednh Casio 580?<\/h3>\n<p>Nh\u1eadp n, nh\u1ea5n SHIFT r\u1ed3i ph\u00edm \u00f7 (nCr), nh\u1eadp r v\u00e0 nh\u1ea5n =. V\u00ed d\u1ee5 10C3: b\u1ea5m 10 SHIFT \u00f7 3 = ra 120.<\/p>\n<h3>C\u00e1ch b\u1ea5m ch\u1ec9nh h\u1ee3p tr\u00ean m\u00e1y t\u00ednh Casio 580?<\/h3>\n<p>Nh\u1eadp n, nh\u1ea5n SHIFT r\u1ed3i ph\u00edm \u00d7 (nPr), nh\u1eadp r v\u00e0 nh\u1ea5n =. V\u00ed d\u1ee5 10P3: b\u1ea5m 10 SHIFT \u00d7 3 = ra 720.<\/p>\n<h3>Ph\u00edm giai th\u1eeba tr\u00ean Casio fx-580VN X \u1edf \u0111\u00e2u?<\/h3>\n<p>Giai th\u1eeba l\u00e0 ch\u1ee9c n\u0103ng ph\u1ee5 c\u1ee7a ph\u00edm x\u207b\u00b9. B\u1ea1n nh\u1eadp s\u1ed1, nh\u1ea5n SHIFT r\u1ed3i x\u207b\u00b9 v\u00e0 nh\u1ea5n =.<\/p>\n<h3>Casio 580 c\u00f3 t\u00ednh \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i nh\u1ecb th\u1ee9c kh\u00f4ng?<\/h3>\n<p>C\u00f3. V\u00e0o MENU, ch\u1ecdn \u1ee9ng d\u1ee5ng Ph\u00e2n ph\u1ed1i (Distribution), ch\u1ecdn Binomial PD ho\u1eb7c Binomial CD v\u00e0 nh\u1eadp x, N, p.<\/p>\n<h3>V\u00ec sao m\u00e1y t\u00ednh b\u00e1o Math ERROR khi t\u00ednh t\u1ed5 h\u1ee3p?<\/h3>\n<p>Th\u01b0\u1eddng do r l\u1edbn h\u01a1n n, ho\u1eb7c n, r kh\u00f4ng ph\u1ea3i s\u1ed1 nguy\u00ean kh\u00f4ng \u00e2m. Ki\u1ec3m tra l\u1ea1i th\u1ee9 t\u1ef1 nh\u1eadp: s\u1ed1 l\u1edbn n tr\u01b0\u1edbc, s\u1ed1 nh\u1ecf r sau.<\/p>\n<h3>C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean Casio 570 c\u00f3 gi\u1ed1ng Casio 580 kh\u00f4ng?<\/h3>\n<p>C\u00e1c ph\u00edm nCr, nPr v\u00e0 giai th\u1eeba tr\u00ean Casio fx-570VN Plus c\u0169ng l\u00e0 SHIFT \u00f7, SHIFT \u00d7 v\u00e0 SHIFT x\u207b\u00b9. Ri\u00eang ch\u1ebf \u0111\u1ed9 Ph\u00e2n ph\u1ed1i v\u1edbi Binomial, Normal c\u00f3 tr\u00ean fx-580VN X; v\u1edbi d\u00f2ng m\u00e1y c\u0169 h\u01a1n, b\u1ea1n n\u00ean ki\u1ec3m tra s\u00e1ch h\u01b0\u1edbng d\u1eabn \u0111i k\u00e8m.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio 580 xoay quanh 3 t\u1ed5 h\u1ee3p ph\u00edm: SHIFT x\u207b\u00b9 cho giai th\u1eeba, SHIFT \u00d7 cho ch\u1ec9nh h\u1ee3p v\u00e0 SHIFT \u00f7 cho t\u1ed5 h\u1ee3p. V\u1edbi b\u00e0i to\u00e1n nh\u1ecb th\u1ee9c ho\u1eb7c ph\u00e2n ph\u1ed1i chu\u1ea9n, h\u00e3y d\u00f9ng \u1ee9ng d\u1ee5ng Ph\u00e2n ph\u1ed1i trong MENU. Luy\u1ec7n l\u1ea1i c\u00e1c v\u00ed d\u1ee5 \u1edf tr\u00ean v\u00e0i l\u1ea7n, b\u1ea1n s\u1ebd b\u1ea5m nhanh v\u00e0 tr\u00e1nh \u0111\u01b0\u1ee3c l\u1ed7i Math ERROR khi l\u00e0m b\u00e0i.<\/p>\n<p>Xem th\u00eam:<\/p>\n<ul>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/may-tinh-phan-so\/\">C\u00e1ch chuy\u1ec3n t\u1eeb s\u1ed1 th\u1eadp ph\u00e2n sang ph\u00e2n s\u1ed1 tr\u00ean m\u00e1y t\u00ednh Casio 580<\/a><\/li>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/may-tinh-casio-online-tren-dien-thoai\/\">M\u00e1y t\u00ednh Casio 580 online tr\u00ean \u0111i\u1ec7n tho\u1ea1i<\/a><\/li>\n<\/ul>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"C\u00e1ch b\u1ea5m t\u1ed5 h\u1ee3p tr\u00ean m\u00e1y t\u00ednh Casio 580?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Nh\u1eadp n, nh\u1ea5n SHIFT r\u1ed3i ph\u00edm \u00f7 (nCr), nh\u1eadp r v\u00e0 nh\u1ea5n =. V\u00ed d\u1ee5 10C3: b\u1ea5m 10 SHIFT \u00f7 3 = ra 120.\"}}, {\"@type\": \"Question\", \"name\": \"C\u00e1ch b\u1ea5m ch\u1ec9nh h\u1ee3p tr\u00ean m\u00e1y t\u00ednh Casio 580?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Nh\u1eadp n, nh\u1ea5n SHIFT r\u1ed3i ph\u00edm \u00d7 (nPr), nh\u1eadp r v\u00e0 nh\u1ea5n =. V\u00ed d\u1ee5 10P3: b\u1ea5m 10 SHIFT \u00d7 3 = ra 720.\"}}, {\"@type\": \"Question\", \"name\": \"Ph\u00edm giai th\u1eeba tr\u00ean Casio fx-580VN X \u1edf \u0111\u00e2u?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Giai th\u1eeba l\u00e0 ch\u1ee9c n\u0103ng ph\u1ee5 c\u1ee7a ph\u00edm x\u207b\u00b9. B\u1ea1n nh\u1eadp s\u1ed1, nh\u1ea5n SHIFT r\u1ed3i x\u207b\u00b9 v\u00e0 nh\u1ea5n =.\"}}, {\"@type\": \"Question\", \"name\": \"Casio 580 c\u00f3 t\u00ednh \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i nh\u1ecb th\u1ee9c kh\u00f4ng?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"C\u00f3. V\u00e0o MENU, ch\u1ecdn \u1ee9ng d\u1ee5ng Ph\u00e2n ph\u1ed1i (Distribution), ch\u1ecdn Binomial PD ho\u1eb7c Binomial CD v\u00e0 nh\u1eadp x, N, p.\"}}, {\"@type\": \"Question\", \"name\": \"V\u00ec sao m\u00e1y t\u00ednh b\u00e1o Math ERROR khi t\u00ednh t\u1ed5 h\u1ee3p?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Th\u01b0\u1eddng do r l\u1edbn h\u01a1n n, ho\u1eb7c n, r kh\u00f4ng ph\u1ea3i s\u1ed1 nguy\u00ean kh\u00f4ng \u00e2m. Ki\u1ec3m tra l\u1ea1i th\u1ee9 t\u1ef1 nh\u1eadp: s\u1ed1 l\u1edbn n tr\u01b0\u1edbc, s\u1ed1 nh\u1ecf r sau.\"}}, {\"@type\": \"Question\", \"name\": \"C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean Casio 570 c\u00f3 gi\u1ed1ng Casio 580 kh\u00f4ng?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"C\u00e1c ph\u00edm nCr, nPr v\u00e0 giai th\u1eeba tr\u00ean Casio fx-570VN Plus c\u0169ng l\u00e0 SHIFT \u00f7, SHIFT \u00d7 v\u00e0 SHIFT x\u207b\u00b9. Ri\u00eang ch\u1ebf \u0111\u1ed9 Ph\u00e2n ph\u1ed1i v\u1edbi Binomial, Normal c\u00f3 tr\u00ean fx-580VN X; v\u1edbi d\u00f2ng m\u00e1y c\u0169 h\u01a1n, b\u1ea1n n\u00ean ki\u1ec3m tra s\u00e1ch h\u01b0\u1edbng d\u1eabn \u0111i k\u00e8m.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ec3 b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio fx-580VN X, b\u1ea1n d\u00f9ng 3 ph\u00edm ch\u00ednh: SHIFT + x\u207b\u00b9 \u0111\u1ec3 t\u00ednh giai th\u1eeba (x!), SHIFT + \u00d7 \u0111\u1ec3 t\u00ednh ch\u1ec9nh h\u1ee3p (nPr) v\u00e0 SHIFT + \u00f7 \u0111\u1ec3 t\u00ednh t\u1ed5 h\u1ee3p (nCr). V\u00ed d\u1ee5, 10C3 b\u1ea5m l\u00e0 10 SHIFT \u00f7 3 = v\u00e0 ra k\u1ebft qu\u1ea3 120. [&hellip;]<\/p>\n","protected":false},"author":102,"featured_media":623595,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"c\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh casio 580","_yoast_wpseo_title":"C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio 580 chi ti\u1ebft nh\u1ea5t","_yoast_wpseo_metadesc":"C\u00e1ch b\u1ea5m x\u00e1c su\u1ea5t tr\u00ean m\u00e1y t\u00ednh Casio 580: ph\u00edm t\u1ed5 h\u1ee3p nCr, ch\u1ec9nh h\u1ee3p nPr, giai th\u1eeba, ph\u00e2n ph\u1ed1i nh\u1ecb th\u1ee9c k\u00e8m v\u00ed d\u1ee5 gi\u1ea3i. 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