### Problem 3 assign 4 RStudio

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The time spent watching TV per week by middle-school students has a normal distribution with mean 20.5 hours and standard deviation 5.5 hours. By using RStudion notebook-markdown find:

The time spent watching TV per week by middle-school students has a normal distribution with mean 20.5 hours and standard deviation 5.5 hours. By using RStudion notebook-markdown find:

a) The percent who watch less than 25 hours per week. ```{r} #include solution in R ``` b) The percent who watch over 30 hours per week. ```{r} #include solution in R ```