February 28, 2017

Homework Help: statistics

Posted by pat on Tuesday, December 11, 2012 at 9:45pm.

6. Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends or more?

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