OpenStax, Introductory Statistics 2e §5.3 The Exponential Distribution · Try It 6 · Probability · Continuous distributions
The Exponential Distribution · Try It 6
Suppose that the longevity of a light bulb is exponential with a mean lifetime of eight years. If a bulb has already lasted 12 years, find the probability that it will last a total of over 19 years.
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OpenStax, Introductory Statistics 2e · §5.3 The Exponential Distribution · Try It 6
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