4) Mimi just started her tennis class three weeks ago. On average, she is able to return 20% of her opponent’s serves. If her opponent serves 10 times, answer the following questions:

(a) What is the probability that she returns at least 2 of the 10 serves from her opponent? (Show work and round the answer to 4 decimal places)

(b) How many serves can she expect to return? (Hint : What is the expected value?) (Show work and round the answer to 2 decimal places)

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