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

question 34

Multiple Choice

If x, the time (in minutes) to complete an change job at certain auto service station, is uniformly distributed over the interval 20 to 30, inclusively (20 $\le$ x $\le$ 30) , then the probability that an oil change job is completed in less than or equal to 22 minutes, i.e., P(x $\le$ 22) is __________________.

• A)0.200
• B)0.300
• C)0.000
• D)0.250
• E)1.000

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Definitions:

Thomas Robert Malthus

An English economist and demographer, known for his theory that population growth will outpace agricultural production, leading to widespread poverty.

Birth Rate

The number of live births per 1,000 people in a population over a given period, commonly calculated on an annual basis.

Industrial Countries

Nations characterized by a significant level of manufacturing activity, advanced technological infrastructure, and a high standard of living.

Less Developed Countries

Nations with a lower standard of living, underdeveloped industrial base, and low Human Development Index relative to other countries.