probability that x is greater than 2 standard deviations above the mean is the same as probability that the z-score, which is the number of standard deviations a value is above the mean, is > 2, which is same as probability that z < -2 = 0.0228.
Lexie G.
asked • 03/22/21Binomial Random Variable
A binomial random variable x is based on 15 trials with the probability of success equal to 0.4. Find the probability that this variable will take on a value more than 2 standard deviations above the mean.
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Lexie G.
Hi! Thank you for responding. The answer key says that it should be 0.03383, but I am confused how to get there. Do you know?03/23/21