The probability of getting a value less than 1.3 from a standard normal distribution equals ________.
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A. B. C. D.C
The z-value of a selected observation, X, from a normal distribution with mean M and standard deviation S equals z = (X-M)/S. For a standard normal distribution,
M = 0 and S = 1. Therefore, for X = 1.3, z = 1.3. Using the Normal probability tables, we get P(Y < 1.3) = 0.9032.