Mathematics, 20.03.2020 20:35, ladybuggirl400
Candidates for employment at a city fire department are required to take a written aptitude test. Scores on this test are normally distributed with a mean of 280 and a standard deviation of 60. A random sample of nine test scores was taken. What is the probability that the sample mean score is less than 250?
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Candidates for employment at a city fire department are required to take a written aptitude test. Sc...
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