Statıstıcs I Deneme Sınavı Sorusu #1279594
Data : 20, 12, 16, 12, 10 ; what is the standard coefficient of skewness of these data ?
|
55 / 32 |
|
65 / 34 |
|
75 / 42 |
|
85 / 44 |
|
95 / 48 |
Yanıt Açıklaması:
a = 5 / (4 x 3) = 5 / 12 ; arithmetic mean : m = 70 / 5 = 14 ; s = ((42 + 22 + 22 + 22 + 62) / 4)1/2 = 4 ; standard coefficient of skewness SCS = (5 / 12) x ((43 + 23 + 23 + 23 + 63) / 43) = (5 / 12) ((64 + 24 + 216) / 64) = (5 / 12) (304 / 64) = (5 / 12) (76 / 16) = (5 / 12) (19 / 4) = 95 / 48. pg. 122. Correct answer is E.
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