Question: A random variable X has a mean value of 20 with a standard deviation of 4. If we obtain a random sample of 64 elements

A random variable X has a mean value of 20 with

A random variable X has a mean value of 20 with a standard deviation of 4. If we obtain a random sample of 64 elements from the population on which X is defined, what is the probability that the sample average value of X for the 64 elements is at most 19.2 O 0.3085 O 0.1587 O 0.0548 O 0.1151 O 0.4207

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