Usign the following pmf:

P( X >= x ) = {0 if x < -4 ;

0.1 if -4 <= x < -1 ;

0.5 if -1 <= x < 0 ;

0.6 if 0 <= x < 3 ;

1 if x >= 3}

Given the following function Y = 50 + 5X^2, What is the standard deviation of the random variable Y?

14

16

18

20

22

explain it clearly and need typed answers

Thank yoiu