Question: Finding Sample Mean Probabilities using the TI-84 calculator An unknown distribution has a sample mean of 90 and a standard deviation of 15. Sample sizes

Finding Sample Mean Probabilities using the TI-84 calculator An unknown distribution has a sample mean of 90 and a standard deviation of 15. Sample sizes of n=30 are drawn randomly from the population. Find the probability that the sample mean is less than 85. Provide your answer in percent to the nearest hundredths (e.g. 77.77%)

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