Page 129 - محاضرات في الإحصاء
P. 129
??59??
??12 13??
??10 12??
?مج ?50 60??
?الـحــل?
?س × ص س?²??
??100 130??
??256 160??
??81 45??
??169 156??
??144 120??
?مج ?750 611??
?مج) س( ?60??
?ا = ن = ?12 = 5??
?مج)ص( ?50??
?ا = ن = ?10 = 5??
?مج) س ? ??ص( ? ??ن) َس ?َ ??ص ( ?11 600 ? 611 10?12? 5 ? 611??
?= ?0.37 = 30 = 720 ? 750 = (12)5 ? 750?? ?مج) س( ? ??ن) َس (? ?أ=?
?= ا –أ ا?
?= ?5.6 = 4.4 – 10 = )12( .37 – 10??
