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Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...

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Statistics

Scores on a certain intelligence test for children between ages13 and 15 years are approximately normally distributed with μ=101and σ=15.

(a) What proportion of children aged 13 to 15 years old havescores on this test above 91 ? (NOTE: Please enter your answer indecimal form. For example, 45.23% should be entered as 0.4523.)Answer:

(b) Enter the score which marks the lowest 20 percent of thedistribution. Answer:

(c) Enter the score which marks the highest 5 percent of thedistribution. Answer:

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