Lemma
EasyContinuous distributions
OpenStax, Introductory Statistics 2e §5.2 The Uniform Distribution · Try It 5 · Probability · Continuous distributions

The Uniform Distribution · Try It 5

The amount of time a service technician needs to change the oil in a car is uniformly distributed between 11 and 21 minutes. Let X = the time needed to change the oil on a car.

(a) Write the random variable X in words. X = __________________.
(b) Write the distribution.
(c) Graph the distribution.
(d) Find P (x > 19).
(e) Find the 50^th percentile.

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OpenStax, Introductory Statistics 2e · §5.2 The Uniform Distribution · Try It 5

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