{"id":518,"date":"2025-12-22T17:23:39","date_gmt":"2025-12-22T17:23:39","guid":{"rendered":"https:\/\/statacademy-eg.com\/blog\/?p=518"},"modified":"2025-12-22T17:23:39","modified_gmt":"2025-12-22T17:23:39","slug":"%d8%ac%d8%af%d9%88%d9%84-%d8%a7%d9%84%d9%85%d8%b3%d8%a7%d8%ad%d8%a7%d8%aa-%d8%a3%d8%b3%d9%81%d9%84-%d8%a7%d9%84%d9%85%d9%86%d8%ad%d9%86%d9%89-%d8%a7%d9%84%d8%b7%d8%a8%d9%8a%d8%b9%d9%8a-%d8%a7%d9%84","status":"publish","type":"post","link":"https:\/\/statacademy-eg.com\/blogs\/%d8%ac%d8%af%d9%88%d9%84-%d8%a7%d9%84%d9%85%d8%b3%d8%a7%d8%ad%d8%a7%d8%aa-%d8%a3%d8%b3%d9%81%d9%84-%d8%a7%d9%84%d9%85%d9%86%d8%ad%d9%86%d9%89-%d8%a7%d9%84%d8%b7%d8%a8%d9%8a%d8%b9%d9%8a-%d8%a7%d9%84\/","title":{"rendered":"\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a"},"content":{"rendered":"<p><strong>\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a<\/strong><\/p>\n<p>\u064a\u064f\u0639\u062f <strong>\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a<\/strong> (Standard Normal Distribution Table \u0623\u0648 Z-Table) \u0645\u0646 \u0623\u0647\u0645 \u0627\u0644\u0623\u062f\u0648\u0627\u062a \u0641\u064a \u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0648\u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a\u060c \u062d\u064a\u062b \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062a\u0628\u0639 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a. \u0648\u064a\u0639\u062a\u0645\u062f \u0639\u0644\u064a\u0647 \u0627\u0644\u0637\u0644\u0627\u0628 \u0648\u0627\u0644\u0628\u0627\u062d\u062b\u0648\u0646 \u0641\u064a \u0645\u062c\u0627\u0644\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629 \u0645\u062b\u0644 \u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0627\u0644\u062d\u064a\u0648\u064a\u060c \u0627\u0644\u0627\u0642\u062a\u0635\u0627\u062f\u060c \u0648\u0627\u0644\u0639\u0644\u0648\u0645 \u0627\u0644\u0627\u062c\u062a\u0645\u0627\u0639\u064a\u0629.<\/p>\n<h2><strong>\u0645\u0627 \u0647\u0648 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u061f<\/strong><\/h2>\n<p>\u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0647\u0648 \u062d\u0627\u0644\u0629 \u062e\u0627\u0635\u0629 \u0645\u0646 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0628\u064a\u0639\u064a\u060c \u064a\u062a\u0645\u064a\u0632 \u0628\u0640:<\/p>\n<ul>\n<li><strong>\u0627\u0644\u0645\u062a\u0648\u0633\u0637 \u0627\u0644\u062d\u0633\u0627\u0628\u064a = 0<\/strong><\/li>\n<li><strong>\u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a = 1<\/strong><\/li>\n<li>\u0645\u0646\u062d\u0646\u0627\u0647 \u0645\u062a\u0645\u0627\u062b\u0644 \u062d\u0648\u0644 \u0627\u0644\u0645\u062a\u0648\u0633\u0637<\/li>\n<li>\u0645\u062c\u0645\u0648\u0639 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u062a\u062d\u062a \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u064a\u0633\u0627\u0648\u064a 1 (\u0623\u064a 100%)<\/li>\n<\/ul>\n<p>\u064a\u064f\u0631\u0645\u0632 \u0644\u0644\u0642\u064a\u0645 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0628\u0640 <strong>Z<\/strong>\u060c \u0648\u0627\u0644\u062a\u064a \u062a\u064f\u0633\u0645\u0649 \u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u0629.<\/p>\n<h2><strong>\u0645\u0627 \u0647\u0648 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u061f<\/strong><\/h2>\n<p>\u0647\u0648 \u062c\u062f\u0648\u0644 \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0644\u0645\u0639\u0631\u0641\u0629 <strong>\u0627\u0644\u0645\u0633\u0627\u062d\u0629 (\u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644)<\/strong> \u0627\u0644\u0648\u0627\u0642\u0639\u0629 \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0645\u0646:<\/p>\n<ul>\n<li>\u0627\u0644\u0637\u0631\u0641 \u0627\u0644\u0623\u064a\u0633\u0631 \u062d\u062a\u0649 \u0642\u064a\u0645\u0629 Z \u0645\u0639\u064a\u0646\u0629<br \/>\n\u0623\u0648<\/li>\n<li>\u0628\u064a\u0646 \u0642\u064a\u0645\u062a\u064a\u0646 \u0645\u0639\u064a\u0627\u0631\u064a\u062a\u064a\u0646<br \/>\n\u0623\u0648<\/li>\n<li>\u0623\u0639\u0644\u0649 \u0623\u0648 \u0623\u0642\u0644 \u0645\u0646 \u0642\u064a\u0645\u0629 Z \u0645\u062d\u062f\u062f\u0629<\/li>\n<\/ul>\n<p>\u0648\u062a\u064f\u0645\u062b\u0644 \u0647\u0630\u0647 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629.<\/p>\n<h3><strong>\u0645\u0643\u0648\u0646\u0627\u062a \u062c\u062f\u0648\u0644<\/strong><strong> Z<\/strong><\/h3>\n<p>\u064a\u062a\u0643\u0648\u0651\u0646 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0645\u0646:<\/p>\n<ul>\n<li><strong>\u0627\u0644\u0635\u0641\u0648\u0641<\/strong>: \u062a\u0645\u062b\u0644 \u0627\u0644\u062c\u0632\u0621 \u0627\u0644\u0635\u062d\u064a\u062d \u0648\u0627\u0644\u0639\u0634\u0631\u064a \u0627\u0644\u0623\u0648\u0644 \u0645\u0646 \u0642\u064a\u0645\u0629 Z<\/li>\n<li><strong>\u0627\u0644\u0623\u0639\u0645\u062f\u0629<\/strong>: \u062a\u0645\u062b\u0644 \u0627\u0644\u062c\u0632\u0621 \u0627\u0644\u0639\u0634\u0631\u064a \u0627\u0644\u062b\u0627\u0646\u064a \u0645\u0646 \u0642\u064a\u0645\u0629 Z<\/li>\n<li><strong>\u0627\u0644\u0642\u064a\u0645 \u062f\u0627\u062e\u0644 \u0627\u0644\u062c\u062f\u0648\u0644<\/strong>: \u062a\u0645\u062b\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 (\u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644) \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649<\/li>\n<\/ul>\n<p><strong>\u0645\u062b\u0627\u0644:<\/strong><br \/>\n\u0625\u0630\u0627 \u0643\u0627\u0646\u062a Z = 1.23<br \/>\n\u0646\u0628\u062d\u062b \u0639\u0646 1.2 \u0641\u064a \u0627\u0644\u0635\u0641\u060c \u06480.03 \u0641\u064a \u0627\u0644\u0639\u0645\u0648\u062f.<\/p>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-519 size-full\" src=\"https:\/\/statacademy-eg.com\/blog\/wp-content\/uploads\/2025\/12\/\u062c\u062f\u0648\u0644-\u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a-\u0623\u0633\u0641\u0644-\u0627\u0644\u0645\u0646\u062d\u0646\u0649-\u0627\u0644\u0637\u0628\u064a\u0639\u064a-\u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a-1.png\" alt=\"\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\" width=\"701\" height=\"801\" srcset=\"https:\/\/statacademy-eg.com\/blogs\/wp-content\/uploads\/2025\/12\/\u062c\u062f\u0648\u0644-\u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a-\u0623\u0633\u0641\u0644-\u0627\u0644\u0645\u0646\u062d\u0646\u0649-\u0627\u0644\u0637\u0628\u064a\u0639\u064a-\u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a-1.png 701w, https:\/\/statacademy-eg.com\/blogs\/wp-content\/uploads\/2025\/12\/\u062c\u062f\u0648\u0644-\u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a-\u0623\u0633\u0641\u0644-\u0627\u0644\u0645\u0646\u062d\u0646\u0649-\u0627\u0644\u0637\u0628\u064a\u0639\u064a-\u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a-1-263x300.png 263w\" sizes=\"auto, (max-width: 701px) 100vw, 701px\" \/><\/h3>\n<h3><strong>\u0643\u064a\u0641\u064a\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a<\/strong><\/h3>\n<ol>\n<li><strong>\u0625\u064a\u062c\u0627\u062f \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0645\u0646 \u0627\u0644\u064a\u0633\u0627\u0631 \u062d\u062a\u0649 \u0642\u064a\u0645\u0629<\/strong><strong> Z<\/strong><\/li>\n<\/ol>\n<p>\u0646\u062d\u062f\u062f \u0642\u064a\u0645\u0629 Z \u0641\u064a \u0627\u0644\u062c\u062f\u0648\u0644\u060c \u0641\u0646\u062d\u0635\u0644 \u0645\u0628\u0627\u0634\u0631\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong><strong>:<\/strong><br \/>\n\u0625\u0630\u0627 \u0643\u0627\u0646\u062a Z = 1.00<br \/>\n\u0627\u0644\u0645\u0633\u0627\u062d\u0629 = 0.8413<br \/>\n\u0623\u064a \u0623\u0646 84.13% \u0645\u0646 \u0627\u0644\u0642\u064a\u0645 \u062a\u0642\u0639 \u0623\u0642\u0644 \u0645\u0646 \u0647\u0630\u0647 \u0627\u0644\u0642\u064a\u0645\u0629.<\/p>\n<ol start=\"2\">\n<li><strong>\u0625\u064a\u062c\u0627\u062f \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0628\u064a\u0646 \u0642\u064a\u0645\u062a\u064a\u0646<\/strong><strong> Z<\/strong><\/li>\n<\/ol>\n<p>\u0646\u062d\u0633\u0628 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0627\u0644\u0645\u0633\u0627\u062d\u062a\u064a\u0646.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong><strong>:<\/strong><br \/>\n\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0628\u064a\u0646 Z = 1 \u0648 Z = 2<br \/>\n= \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0639\u0646\u062f 2 \u2212 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0639\u0646\u062f 1<br \/>\n= 0.9772 \u2212 0.8413<br \/>\n= 0.1359<\/p>\n<ol start=\"3\">\n<li><strong>\u0625\u064a\u062c\u0627\u062f \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0642\u064a\u0645\u0629<\/strong><strong> Z<\/strong><\/li>\n<\/ol>\n<p>\u0646\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0642\u0627\u0639\u062f\u0629:<\/p>\n<p>\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0623\u0643\u0628\u0631 \u0645\u0646 Z = 1 \u2212 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0623\u0642\u0644 \u0645\u0646 Z<\/p>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong><strong>:<\/strong><br \/>\n\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0623\u0643\u0628\u0631 \u0645\u0646 Z = 1.5<br \/>\n= 1 \u2212 0.9332<br \/>\n= 0.0668<\/p>\n<ol start=\"4\">\n<li><strong>\u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u0633\u0627\u0644\u0628\u0629 \u0644\u0640<\/strong><strong> Z<\/strong><\/li>\n<\/ol>\n<p>\u0628\u0633\u0628\u0628 \u062a\u0645\u0627\u062b\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a:<\/p>\n<ul>\n<li>\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0639\u0646\u062f \u2212Z = 1 \u2212 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0639\u0646\u062f Z<\/li>\n<\/ul>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong><strong>:<\/strong><br \/>\n\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0623\u0642\u0644 \u0645\u0646 Z = \u22121<br \/>\n= 1 \u2212 0.8413<br \/>\n= 0.1587<\/p>\n<h3><strong>\u0623\u0647\u0645\u064a\u0629 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a<\/strong><\/h3>\n<p>\u064a\u0633\u0627\u0639\u062f \u062c\u062f\u0648\u0644 Z \u0641\u064a:<\/p>\n<ul>\n<li>\u062d\u0633\u0627\u0628 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629<\/li>\n<li>\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0641\u0631\u0636\u064a\u0627\u062a<\/li>\n<li>\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a <a href=\"https:\/\/ar.wikipedia.org\/wiki\/%D8%A5%D8%AD%D8%B5%D8%A7%D8%A1_%D8%AD%D9%8A%D9%88%D9%8A\" target=\"_blank\" rel=\"noopener\">\u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0627\u0644\u062d\u064a\u0648\u064a<\/a><\/li>\n<li>\u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0641\u064a \u0627\u0644\u062f\u0631\u0627\u0633\u0627\u062a \u0627\u0644\u0639\u0644\u0645\u064a\u0629<\/li>\n<li>\u0627\u062a\u062e\u0627\u0630 \u0627\u0644\u0642\u0631\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u0628\u0646\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644<\/li>\n<\/ul>\n<h3><strong>\u0623\u062e\u0637\u0627\u0621 \u0634\u0627\u0626\u0639\u0629 \u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062c\u062f\u0648\u0644<\/strong><strong> Z<\/strong><\/h3>\n<ul>\n<li>\u0627\u0644\u062e\u0644\u0637 \u0628\u064a\u0646 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0645\u0646 \u0627\u0644\u064a\u0633\u0627\u0631 \u0648\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0628\u064a\u0646 \u0627\u0644\u0642\u064a\u0645<\/li>\n<li>\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0642\u064a\u0645\u0629 Z \u062e\u0627\u0637\u0626\u0629<\/li>\n<li>\u0646\u0633\u064a\u0627\u0646 \u062a\u0645\u0627\u062b\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a<\/li>\n<li>\u0639\u062f\u0645 \u0627\u0644\u0627\u0646\u062a\u0628\u0627\u0647 \u0644\u0644\u0625\u0634\u0627\u0631\u0629 \u0627\u0644\u0633\u0627\u0644\u0628\u0629<\/li>\n<\/ul>\n<p>\u064a\u064f\u0639\u062f <strong>\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a<\/strong> \u0623\u062f\u0627\u0629 \u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u0627\u0644\u0625\u062d\u0635\u0627\u0621\u060c \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0644\u062a\u062d\u0648\u064a\u0644 \u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u0629 \u0625\u0644\u0649 \u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u062f\u0642\u064a\u0642\u0629. \u0648\u0645\u0646 \u062e\u0644\u0627\u0644 \u0641\u0647\u0645 \u0637\u0631\u064a\u0642\u0629 \u0642\u0631\u0627\u0621\u062a\u0647 \u0648\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647 \u0628\u0634\u0643\u0644 \u0635\u062d\u064a\u062d\u060c \u064a\u0645\u0643\u0646 \u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u0633\u062a\u062e\u0644\u0627\u0635 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0625\u062d\u0635\u0627\u0626\u064a\u0629 \u0628\u0633\u0647\u0648\u0644\u0629 \u0648\u062f\u0642\u0629.<\/p>\n<p>&nbsp;<\/p>\n<p class=\"post-title mb-3\"><a href=\"https:\/\/statacademy-eg.com\/blog\/%d8%aa%d8%ad%d9%84%d9%8a%d9%84-%d8%a7%d9%84%d8%a7%d9%86%d8%ad%d8%af%d8%a7%d8%b1\/\">\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631 : \u0634\u0631\u062d \u0627\u0644\u0645\u0641\u0647\u0648\u0645 \u0648\u0627\u0644\u0623\u0646\u0648\u0627\u0639 \u0648\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u062e\u062a\u064a\u0627\u0631 \u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0627\u0646\u062d\u062f\u0627\u0631<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u064a\u064f\u0639\u062f \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a (Standard Normal Distribution Table \u0623\u0648 Z-Table) \u0645\u0646 \u0623\u0647\u0645 \u0627\u0644\u0623\u062f\u0648\u0627\u062a \u0641\u064a \u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0648\u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a\u060c \u062d\u064a\u062b \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062a\u0628\u0639 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a. \u0648\u064a\u0639\u062a\u0645\u062f \u0639\u0644\u064a\u0647 \u0627\u0644\u0637\u0644\u0627\u0628 \u0648\u0627\u0644\u0628\u0627\u062d\u062b\u0648\u0646 \u0641\u064a \u0645\u062c\u0627\u0644\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629 \u0645\u062b\u0644 \u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0627\u0644\u062d\u064a\u0648\u064a\u060c \u0627\u0644\u0627\u0642\u062a\u0635\u0627\u062f\u060c \u0648\u0627\u0644\u0639\u0644\u0648\u0645 \u0627\u0644\u0627\u062c\u062a\u0645\u0627\u0639\u064a\u0629. \u0645\u0627 \u0647\u0648 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a\u061f \u0627\u0644\u062a\u0648\u0632\u064a\u0639 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":521,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[98],"class_list":["post-518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-76","tag-98"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a - Stat Academy<\/title>\n<meta name=\"description\" content=\"\u062a\u0639\u0631\u0641 \u0639\u0644\u064a \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0648\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a\u0647 , \u062d\u064a\u062b \u064a\u0648\u0636\u062d \u0642\u064a\u0645 Z \u0648\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a\u0647\u0627 \u0648\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u0648\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0641\u0631\u0636\u064a\u0627\u062a \u0628\u062f\u0642\u0629 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\u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631\u064a \u0648\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a\u0647 , \u062d\u064a\u062b \u064a\u0648\u0636\u062d \u0642\u064a\u0645 Z \u0648\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a\u0647\u0627 \u0648\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0627\u0644\u0625\u062d\u0635\u0627\u0621 \u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0627\u062d\u062a\u0645\u0627\u0644\u0627\u062a \u0648\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0641\u0631\u0636\u064a\u0627\u062a \u0628\u062f\u0642\u0629 \u0648\u0633\u0647\u0648\u0644\u0629.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statacademy-eg.com\/blogs\/\u062c\u062f\u0648\u0644-\u0627\u0644\u0645\u0633\u0627\u062d\u0627\u062a-\u0623\u0633\u0641\u0644-\u0627\u0644\u0645\u0646\u062d\u0646\u0649-\u0627\u0644\u0637\u0628\u064a\u0639\u064a-\u0627\u0644\/\" 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