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Sampson Corporation is evaluating the introduction of a new product. The possible levels of unit sales and the probabilities of their occurrence are shown next:

Possible Market Reaction Sales in Units Probabilities

Low response $800\mathrm{.}40$

Moderate response $900\mathrm{.}10$

High response $1100\mathrm{.}30$

Very high response $1300\mathrm{.}20$

What is the expected value of unit sales for the new product?

Note: Do not round intermediate calculations and round your answer to the nearest whole unit.$)$

What is the standard deviation of unit sales?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.