Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=96 and σ=21. (a) What proportion of children aged 13 to 15 years old have...

Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=96 and σ=21.

(a) What proportion of children aged 13 to 15 years old have scores on this test above 86 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.)
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(b) Enter the score which marks the lowest 30 percent of the distribution.
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(c) Enter the score which marks the highest 15 percent of the distribution.
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