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please explain A sample of size 115 will be drawn from a population with mean 48 and standard deviation 12. Use the TI-84 calculator. Part

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A sample of size 115 will be drawn from a population with mean 48 and standard deviation 12. Use the TI-84 calculator. Part 1 of 2 Find the probability that x will be less than 45. Round the answer to at least four decimal places. The probability that x will be less than 45 is Part 2 of 2 Find the 25" percentile of x. Round the answer to two decimal places. The 25" percentile is

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