Standard normal distribution?

👨🏻‍🏫 學術台數學

2017-04-23 11:52 pm

Find k such that P(|Z| <= k) = 0.98 where Z follows the standard normal distribution.

回答 (1)

2017-04-24 1:55 pm

✔ 最佳答案

Find P(Z<=k) = .99
P(Z=2.32)=0.9898
P(Z=2.33)=0.9901
By Interpolation method
k=(2.33*2+2,32*1)/3~2.327 ....Ans

參考: http://www.normaltable.com/

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