Question

Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=111μ=111 and σ=18σ=18.

(a) What proportion of children aged 13 to 15 years old have scores on this test above 97 ? (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 20 percent of the distribution.
Answer:

(c) Enter the score which marks the highest 15 percent of the distribution.
Answer:

Answer 1