Statistics-Math

Luisa just started her tennis class three weeks ago. On average, she is able to return 15% of her opponent’s serves.  If her opponent serves 10 times, answer the following questions:

  Let random number X be the number of returns that Luisa gets. As we know X follows a binomial distribution. Identify the number of trials (n), and probability of success in any one trial (p).

  What is the probability that she returns at least 1 of the 10 serves from her opponent? (Show work and round the answer to 4 decimal places)

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