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About what percent of x values lie between the mean and one standard deviation (one sided)?...

About what percent of x values lie between the mean and one standard deviation (one sided)? (Enter an exact number as an integer, fraction, or decimal.)

Math   Statistics-And-Probability   
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Answer #1

Solution :

Using Empirical rule we can say that,

34% of x values lie between the mean and one standard deviation (one sided) .

P( - 1< X < + 1) = 68%

P( - 2< X < + 2) = 95%

P( - 3< X < + 3) = 99.7%

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