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.

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