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

Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=101 and σ=21. (a) What proportion of children aged 13 to 15 years old have scores on this test above 87 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer: 0.7475 (b) Enter the score which marks the lowest 30 percent of the distribution. Answer: 0.0004 (c) Enter the score which marks the highest 15 percent of the distribution.

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