Page 18 - الإحصاء في مجال الدراسات الإعلامية
P. 18
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?( ?%25 = 100 × ) 20 ÷ 5?? ??0.25 = 20 ÷ 5?? ??5?? ??12??
?( ?%15 = 100 × ) 20 ÷ 3?? ??0.15 = 20 ÷ 3?? ??3?? ??- 19??
?( ?%10 = 100 × ) 20 ÷ 2?? ??0.10 = 20 ÷ 2?? ??2?? ??- 26??
?( ?%15 = 100 × ) 20 ÷ 3?? ??0.15 = 20 ÷ 3?? ??3?? ??- 33??
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