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Example 5.9 from Statistics, 5.3 The Exponential Distribution (Optional)
(part 3)
c. Eighty percent of computer parts last at most how long?
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.
Solution
c. Find the 80th percentile. Draw the graph. Let k = the 80th percentile.
Figure 5.26Solve for k:
Eighty percent of the computer parts last at most 16.1 years.
How did it go?