1. At a large university, the mean age of students is 22.3 years and standard deviation is 4 years. A random sample of 6
Posted: Wed May 11, 2022 8:16 pm
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1. At a large university, the mean age of students is 22.3 years and standard deviation is 4 years. A random sample of 64 students is drawn. a. What is the probability that the average age of these students is greater than 23 years? b. Find 90th percentile of the average students' age in the sample.