Question

A study of the checkout lines at Dwyer's Farms reveals that the probability that any one...

A study of the checkout lines at Dwyer's Farms reveals that the probability that any one of ten checkout lanes is busy at an instant during peak hours is 0.6.

(a) What is the most probable number of checkout lanes that are busy at any instant? Hint:

P(X = x)

will continue to increase as long as

P(X = x + 1) ? P(X = x).

(Round your answer up to the nearest whole number.)
lanes

(b) What is the probability that the number of checkout lanes found in part (a) occurs? (Round your answer to three decimal places.)

Math   Statistics-And-Probability   
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