OpenStax, Statistics §5.3 The Exponential Distribution (Optional) · Try It 6 · Probability · Continuous distributions
The Exponential Distribution (Optional) · 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 more than 19 years.
OpenStax, Statistics · §5.3 The Exponential Distribution (Optional) · Try It 6
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