Suppose a population has a mean of 800 and a variance of 81. If a random sample of size 100 is drawn from the population, the probability that the sample mean is between 799 and 801 is ________. 0.43 0.54 0.72 0.68 0.99
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Step 1: Calculate the standard deviation (sigma) by taking the square root of the variance: \[ \sigma = \sqrt{81} = 9 \] Show more…
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