An investement manager thinks stock ABC has a return distribution as depicted via the four scenarios in Table A. cALCULATE THE STOCK EXPECTED RETURN, and standard deviation.

Level Of Demand	Probability Of Occurrence	Return Associated With Occurrence
Weak	15%	-15%
Average	40%	10%
Above Average	35%	15%
Very Strong	10%	25%

a. What is stock ABC's expected return?

b. What is the standard deviation of stock ABC's expected rate of return