If x, the time (in minutes)to complete an oil change job at certain auto service station, is uniformly distributed over the interval 20 to 30, inclusively (20 $\le$ x $\le$ 30), then the height of this distribution, f(x), is __________________.
A)1/10
B)1/20
C)1/30
D)12/50
E)1/60

Question

Quizplus · Accepted Answer

The height of a uniform distribution is calculated as 1 divided by the range of the interval. Here, the range is 30 - 20 = 10, so the height is 1/10.

If X, the Time (In Minutes)to Complete an Oil Change ≤\le≤

If X, the Time (In Minutes)to Complete an Oil Change $\le$