Math, asked by devbtech08, 5 months ago

In a sample of 1000 cases, the mean of a certain test is 14.40 and sigma equal to 2.50. Assuming normality of the distribution, how many individuals score between 12 and 16

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Answered by raisarita938

Answer:

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Answered by EmylinEpsiba

Answer:

Solutions:n = 1000, mean = 14 and standard deviation = 2.5Should say +0.4b. How many score above 18?1-.9452=.054799 * 1000 = 54.80c. How many score ...

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