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Example 5.9 from Statistics, 5.3 The Exponential Distribution (Optional)
b. On the average, how long would five computer parts last if they are used one after another?
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
b. On the average, one computer part lasts 10 years. Therefore, five computer parts, if they are used one right after the other would last, on the average, (5)(10) = 50 years.
How did it go?