X is a normal random variable with population mean 5 and population variance 4 . The probability that X lies between 3 and 6 is closest or equal to: 0.6915 0.7473 0.3654 0.5328
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For X = 3: z = (3 - 5) / 2 = -1 For X = 6: z = (6 - 5) / 2 = 0.5 Show more…
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