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

question 34

Multiple Choice

If x, the time (in minutes) to complete an oil change job at a 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

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Definitions:

Weighted Average

A calculation that takes into account the varying degrees of importance of the numbers in a data set.

Mean Values

Statistical measures representing the average value in a set of data, calculated by summing all observations and dividing by the number of observations.

Individual

A single human being as distinct from a group, class, or family.

Outcomes

The results or consequences of actions, processes, or games, which can be measured to assess performance or success.