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A variable is normally distributed with a mean of 2.00 and a variance of 16.00. Calculate the probability of observing a value of 7.40 or less. That is, calculate P(Xi < =7.40) given that X is distributed as N(2, 16). Use this excerpt from the cumulative distribution function for the standard normal random variable table to calculate your answer.Cumulative Probabilities for a Standard Normal DistributionP(Z ≤ x) = N(x) for x ≥ 0 or P(Z ≤ z) = N(z) for z ≥ 0 The probability of observing a value of 7.40 or less is closest to:A:63.31%. B:91.15%. C:96.78%. |
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