The time a front counter clerk takes to serve their customer is known to have an exponential

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The time a front counter clerk takes to serve their customer is known to have an exponential distribution.

Suppose that the average serving time is five minutes for a front counter clerk.

a) What value of l should use?

b) With this model, what would the probability be that a front counter clerk serves their customer in less than seven minutes?

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Business Statistics

ISBN: 9781292269313

4th Global Edition

Authors: Norean Sharpe, Richard De Veaux, Paul Velleman

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