Please solve for expected value and variance

is V\" uppose an investor is concerned about a business choice in which there are three prospects; the probability and returns are given below: Probability Return [a 0.4 $110 ; l 0.3 , 307 ' 7 0.3 ' 30 ' The expected value of the uncertain investment is $7 7 . (Round your answer to the nearest dollar.) The variance of the investment is $13. (Round your answer to the nearest dollar.)