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Today, 11:28

The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95.44 percent of the observations lie between what two values?

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  1. Today, 13:53
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    per the 68-95-99 rule

    95 % lie within 2 standard deviations

    so 2 x 10 = 20

    500-20 = 480

    500 + 20 = 520

    so 95% lie between 480 and 520
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