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dasan21
05.12.2019 •
Mathematics
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 92 ? (reminder: proportions are between 0 and 1 - don't put in percentages! )
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Ответ:
0.8238
Step-by-step explanation:
Given : Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with
and
.
Let x denotes the scores on a certain intelligence test for children between ages 13 and 15 years.
Then, the proportion of children aged 13 to 15 years old have scores on this test above 92 will be :-
Hence, the proportion of children aged 13 to 15 years old have scores on this test above 92 = 0.8238
Ответ:
10
Step-by-step explanation:
i took the test