Mathematics Homework Help

Hello,

Chapter 7 Problem Post

Lesson 7.2

Question 3 of 13

Please show your work, providing an explanation for how the answer was found. The answer to this question is: 0.9265

In this scenario, we need to be able to show how we found the answer.

The mean points obtained in an aptitude examination is 143 points with a variance of 361.

What is the probability that the mean of the sample would differ from the population mean by less than 3.8 points if 80 exams are sampled? Round your answer to four decimal places.

Thank you