Let the random variable X represent the number of people living in a household in a certain town. The standard deviation of X is 1.8. Which of the following statements is the best interpretation of the standard deviation? WHAT IS THE CORRECT ANSWER? A. The number of people living in a randomly selected household is expected to be 1.8 people. B. The number of people living in a randomly selected household will be 1.8 people away from the mean.
Let the random variable X represent the number of people living in a household in a certain town. The
standard deviation of X is 1.8. Which of the following statements is the best interpretation of the standard
deviation?
WHAT IS THE CORRECT ANSWER?
A. The number of people living in a randomly selected household is expected to be 1.8 people.
B. The number of people living in a randomly selected household will be 1.8 people away from the mean.
C. On average, the number of people living in a household varies from the mean by about 1.8 people.
D. For a random sample of households, the average number of people per household is expected to be 1.8
people.
E. For a random sample of households, the average number of people per household will be 1.8 people away
from the mean.
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