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The average (arithmetic mean) value of x in the frequency distribution above is 0. If a value of x is to be selected at random from the distribution, which of the following events is most likely?

AThe value of x will be less than the mean.
BThe value of x will be greater than or equal to the mean.
CThe value of x will be at most one unit away from the mean.
DThe value of x will be at least two units away from the mean.
EThe value of x will be one or two units away from the mean.

D显示答案

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6.4.1 古典概率

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