In a Geography test, the standard score of Sophie is -1. If the scores of the 100 students who complete the test are normally distributed, find the no. of students whose scores are lower than Sohpie's.
Ans: 16
show clear steps please!!thx a lot!
F.5 more about dispersion
2011-06-16 3:33 am
回答 (1)
2011-06-16 5:10 am
✔ 最佳答案
Solution:P(Z < -1) = 0.1587
So, the no. of students whose scores are lower than Sohpie's.
= 100 * 0.1587
= 16 (correct to the nearest integer)
收錄日期: 2021-04-26 14:44:07
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