San Francisco commuter must wait for a BART train. Suppose
Chapter 0, Problem 7.25(choose chapter or problem)
San Francisco commuter must wait for a BART train. Suppose that the density curve is as pictured (a uniform distribution): a. What is the probability that x is less than 10 min? more than 15 min? 0.05 0 20 Minutes Density x 1 4 1 2 Pa 1 4 x 1 2 b Pa x 1 4 b Pa x 1 2 b b. What is the probability that x is between 7 and 12 min? c. Find the value c for which P(x c) .9. 7.
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