October 9, 2015

Homework Help: statistics

Posted by tammy on Sunday, April 29, 2012 at 6:19pm.

For a normal distribution with a mean of 140 and a standard deviation of 55 find each value requested.

a. What is the minimum score needed to be in the bottom 10% of the distribution?

b. What scores form the boundaries for the middle 75% of the distribution.

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