推 zxxsd :(96-68)>(68-50) 這樣嗎 06/27 13:47
→ sVs :懇請樓上 寫下一下算式 ~ 06/27 14:34
推 GSXSP :(81-75)/3=2 ; (86-80)/5=6/5<2 hence N > K 07/05 10:16
The mean of 600 female members normally distributed is 80
and the standard deviation is 5. Kth percentile of the female
members gets score 86.
The mean of 400 male members normally distributed is 75
and the standard deviation is 3. Nth percentile of the male
members gets score 81.
QA: K
QB: N
以上是遇到的題目,我通常遇到Normal Distribution題目都會想到那個圖
就是有平均數,標準差和百分比的那個圖,但這題我卻用不出來懇請解答.
answer: B
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