could you please solve number $5?$

$4.(20$ points$)$ Using the wage$\_$edw$\_$select data from part $1)$ and the grouped by$()$ and summarize$()$ functions from the dplyr package, calculate the mean, median, variance, and standard deviation of the wage variable by education.

Hint: Complete and run the rcode below to help you answer part $4).$

Copy and paste your Rcode and R output here.

$5.(20$ points$)$ Use your results $($output$)$ from part $4)$ to indicate whether the wage at each educational level is left$-$skewed, symmetric or right$-$skewed?

Write your answer here here.