What is the probability, What is the probability that this

What is the probability

Assignment Help Basic Statistics

Reference no: EM131166254

A study has shown that the probability distribution of X, the number of customers in line (including the one being served, if any) at a checkout counter in a department store, is given by P(X = 0) = 0.25, P(X = 1) = 0.25, P(X = 2) = 0.20, P(X = 3) = 0.20, and P( ≥ 4) = 0.10. Consider a newly arriving customer to the checkout line.

a. What is the probability that this customer will not have to wait behind anyone?

b. What is the probability that this customer will have to wait behind at least one customer?

c. On average, the newly arriving customer will have to wait behind how many other customers?

Reference no: EM131166254

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