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December 20, 2014

Homework Help: statistics

Posted by Ann on Monday, May 27, 2013 at 8:16pm.

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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