Consider the joint probability distribution below:

Prob. (X=Xiand Y=Yi)	X	Y
0.15	4	20
0.35	-4	12.5
0.5	0	23

Compute the expected value for random variable X. (Report your answer with decimal precision. Make sure that you round up your answer to two decimal points.)

Compute the standard deviation for random variable X. (Report your answer with decimal precision. Make sure that you round up your answer to two decimal points.)

Compute the covariance between random variables X and Y. (Report your answer with decimal precision. Make sure that you round up your answer to two decimal points.)

Compute the coefficient of correlationbetween random variables X and Y. (Report your answer with decimal precision. Make sure that you round up your answer to two decimal points.)