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OpenStudy (tanner23456):
Let X be normally distributed with mean and variance. a) Verify that q3 = mean + 0.67σ and that q1 = mean - 0.67σ. b) Find the interquartile range for X. c) Verify that the inner fences for X are f1 = mean - 2.68σ and f3 = mean + 2.68σ. d) Verify that the probability that X will fall beyond the inner fences is approximately 0.007.
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