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A hockey equipment store has checkout times that follow an exponential distribution with a mean time of 8 minutes. 1. What is the probability that

A hockey equipment store has checkout times that follow an exponential distribution with a mean time of 8 minutes.

1. What is the probability that the checkout time for the next customer will be 6 minutes or less? Your answer should be between 0 and 1 with four digits after the period (e.g. 0.5612).

2.What is the variance of the time between checkouts? The results should be in minutes and given to four decimal places (e.g. 0.3453)

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