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:

Cross-Linked Proteins

Proteins whose amino acid side chains form covalent bonds with each other, stabilizing their structure and affecting their properties.

DNA Mutations

Alterations in the DNA sequence that can lead to changes in gene function and can be inherited or acquired.

Genetics

The branch of biology concerned with the study of genes, genetic variation, and heredity in living organisms.

Calcium

A chemical element essential for living organisms, particularly in cell physiology, where it signals for many cellular processes.