If the random variable of x is normally distributed,68.26% of all possible observed values of x will be within two standard deviations of the mean.

Name: If the random variable of x is normally distributed,68.26% of all possible observed values of x will be within two standard deviations of the mean.
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Quizplus · Accepted Answer

For a normal distribution, approximately 68.26% of values lie within one standard deviation of the mean, not two. Two standard deviations cover about 95.44% of the data.

If the Random Variable of X Is Normally Distributed,68