Question

(1 point) Scores on a certain intelligence test for children between ages 13 and 15 years...

(1 point) Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with ?=101μ=101 and ?=24σ=24.

(a) What proportion of children aged 13 to 15 years old have scores on this test above 83 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.)
Answer:

(b) Enter the score which marks the lowest 25 percent of the distribution.
Answer:

(c) Enter the score which marks the highest 10 percent of the distribution.
Answer:

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