Here's the question: The pdf p for the total waiting time for two buses is given by
(1/25)x 0 ≤ x < 5
F(X) = (2/5) – (1/25)x 5 ≤ x < 10
Find the 90th percentile and the expected waiting time for any of the two buses.
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F(A) = 0.90
Solve for 'A'
Read the definition of pdf and cdf again.
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