Sampson Corp. is evaluating the introduction of a new product. The possible levels of unit sales and the probabilities of their occurrence are given. a. What is the expected value of unit sales for the new product? (Do not round intermediate calculations and round your answer to the nearest whole unit.) b. What is the standard deviation of unit sales? (Do not round intermediate calculations. Round your answer to 2 decimal places.)

		Sales in Units	Probability
	Low response	30	.10
	Moderate response	50	.20
	High response	75	.40
	Very high response	90	.30
	Enter answers in the highlighted areas below.
	Solutions:
a.	What is the expected value of unit sales for the new product?
	(Do not round intermediate calculations and round your answer to the nearest whole unit.)
	Expected sales in units	50	units
b.	What is the standard deviation of unit sales? (Do not round intermediate calculations. Round your answer to 2 decimal places.)
	Outcome	Expected Value	Outcome - Exp Value	(Outcome - Exp Value)	Probability	(Outcome - Exp Value) * Probability
	Standard deviation of unit sales		units