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In a data set with a normal distribution, the mean is 98 and the standard deviation is 12. About what percent of the data lie between 74 and 122?

In a data set with a normal distribution the mean is 98 and the standard deviation is 12 About what percent of the data lie between 74 and 122 class=

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Abrain59

Answer:

B. 95%

Step-by-step explanation:

The mean is in the middle and standard deviation is 12. So subtract 12 from 98 until you get to 74. That's two times. And two times/spaces to the left and right is 95% of the data.

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