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OpenStudy (anonymous):
If the standard normal deviate of a random variable value of x = 2 is z = -2, while the standard deviation of the random variable x equals 2, then the mean of x is:
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OpenStudy (amistre64):
if i read this right; z=-2 is 2 standard deviations from the mean to the left; if the sd = 2; then we are |2|+1sd+1sd from the mean; and the mean would be 2+2+2 = 6
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