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Title: The scores on a certain test are normally distributed with a mean score of 63 and a standard ... Post by: littlej_dvine on Jan 26, 2018 The scores on a certain test are normally distributed with a mean score of 63 and a standard deviation of 2. What is the probability that a sample of 90 students will have a mean score of at least 63.2108?
A) 0.3413 B) 0.3174 C) 0.1587 D) 0.8413 Title: The scores on a certain test are normally distributed with a mean score of 63 and a standard ... Post by: DCAV1 on Jan 26, 2018 Content hidden
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