Use the empirical rule to determine the approximate probability that a z value is between -2 and 0 on the standard normal curve.

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Mar 5, 2018

The empirical rule states that 95% of the values are within 2 standard deviations of mean for a normal distribution. Here, mean = 0, standard deviation = 1, and using symmetry, half of 95 should be from -2 to 0, i.e 95/2 = 47.5%

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