Suppose that the scores on a test have a normal distribution with mean 500 and standard deviation 100. Use this data for questions 6 through 11.
For the standard normal distribution, the area to the left of z = –1.4 is
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For the standard normal distribution, the area to the right of z = 2.1 is
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For the standard normal distribution, the area between z = –0.94 and z = 0.94 is
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For the standard normal distribution, the area between z = 0.68 and z = 1.57 is
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For the standard normal distribution, what value of z has an area of 0.20 to the left of z?
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What is the z‐score for test score 350?
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What is the proportion of scores less than 350?
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What is the proportion of scores greater than 400?
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What is the proportion of scores between 450 and 600?
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What score is the 90 th percentile?
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What score is the 25 th percentile?
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