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The mean points obtained in an aptitude examination is 111 points with a variance of 400.
What is the probability that the mean of the sample would differ from the population mean by less than 2.3 points if 79 exams are sampled? Round your answer to four
decimal places.

Answer :

gagemcculley

Answer:

0.9128 = 91.28% probability that the mean of the sample would differ from the population mean by less than 2.8 points if 63 exams are sampled

Step-by-step explanation:

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