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please show work In the first quarter of 2013, a group of domestic equity mutual funds...

please show work

In the first quarter of 2013, a group of domestic equity mutual funds had a mean return of 6.2% with a standard deviation of 1.8%. If a Normal model can be used to model them, what percent of the funds would you expect to be in each region? Be sure to draw a picture first. a) Returns of 8.0% or more b) Returns of 6.2% or less c) Returns between 2.6% and 9.8% d) Returns of more than 11.6%

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