Find probability that mean aptitude score is in given range
Assume that the mean score on a certain aptitude testacross the nation is 100, the standard deviation is 20 points. Find the probability that the mean aptitude score for a radomly selecyed group of 150 is between 101.5 and 98.5.
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The standard deviation is 20 points. Find the probability that the mean aptitude score for a radomly selecyed group of 150 is between 101.5 and 98.5.
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