Question
In: Statistics and Probability
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=15.
(a) What proportion of children aged 13 to 15 years old have scores on this test above 91 ? (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 5 percent of the distribution. Answer:
Solutions
Expert Solution
note that, i took intermediate calculations to four or five decimals places for less error.
If you want you can round off to 2 decimals as needed.
orchestra answered 1 year agoRelated Solutions
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scores on this test above 88 ? Answer in decimal form.
(b) Enter the score which marks the lowest 25 percent of the
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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=106
and σ=15.
a) What proportion of children aged 13 to 15 years old have
scores on this test above 88 ? Answer in decimal form.
(b) Enter the score which marks the lowest 25 percent of the
distribution.
c) Enter the score which marks the highest 10 percent of the
distribution.
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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 20 percent of the
distribution.
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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=101μ=101 and σ=15σ=15.
(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:
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