Two standard deviations about the mean is the mean +/- 2 standard deviations.
For this problem that would be 96.1 +/- 2*7.9
Which is 96.1 - 15.8 and 96.1 + 15.8.
Which is 80.3, 111.9
Mariana M.
asked • 03/07/21Standard Deviation
A random variable is normally distributed with mean 96.1 and a standard deviation of 7.9. what value is 2 standard deviations about the mean
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