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

question 7

Multiple Choice

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 mean of this distribution is __________________.

• A)50
• B)25
• C)10
• D)15
• E)5

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Definitions:

Informative Memos

Memos designed to relay important information to colleagues, employees, or stakeholders concisely and clearly.

Reader Benefit

The advantage or value that a reader gains from a piece of communication, often used as a persuasive element in business writing.

Enthusiastic Idea

A concept or plan that is received with excitement and eagerness.

Positive Message

Communication that conveys favorable information, affirmation, or encouragement, often aimed at building goodwill or positive relations.