Use the normal distribution of IQ scores, which has a mean of 85 and a standard...
Use the normal distribution of IQ scores, which has a mean of 85 and a standard deviation of 18, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity.
The percentage of scores between 40 and 130 is ______%.
| Full data set | |||
|
Standard score |
% |
Standard score |
% |
|---|---|---|---|
|
minus−3.0 |
0.13 |
0.1 |
53.98 |
|
minus−2.5 |
0.62 |
0.5 |
69.15 |
|
minus−2 |
2.28 |
0.9 |
81.59 |
|
minus−1.5 |
6.68 |
1 |
84.13 |
|
minus−1 |
15.87 |
1.5 |
93.32 |
|
minus−0.9 |
18.41 |
2 |
97.72 |
|
minus−0.5 |
30.85 |
2.5 |
99.38 |
|
minus−0.1 |
46.02 |
3 |
99.87 |
|
0 |
50.00 |
3.5 |
99.98 |
Homework Answers
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Use the normal distribution of IQ scores, which has a mean of
85 and a standard...
Use the normal distribution of IQ scores, which has a mean of 105 and a standard...
Use the normal distribution of IQ scores, which has a mean of 105 and a standard deviation of 13, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity. Percentage of scores greater than 105 is _____ (Round to two decimal places as needed.) Standard score Percent -3 0.13 -2.5 0.62 -2 2.28 -1.5 6.68 -1 15.87 -0.9 18.41 -0.5 30.85 -0.1 46.02 0 50 0.1 53.98 0.5 69.15 0.9 81.59...
Use the normal distribution of IQ scores, which has a mean of 125 and a standard...
Use the normal distribution of IQ scores, which has a mean of 125 and a standard deviation of 11,and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity. Percentage of scores greater than 152.5 is ___ % Standard score Percent -3 0.13 -2.5 0.62 -2 2.28 -1.5 6.68 -1 15.87 -0.9 18.41 -0.5 30.85 -0.1 46.02 0 50 0.1 53.98 0.5 69.15 0.9 81.59 1 84.13 1.5 93.32 2 97.72 2.5...
Use the normal distribution of IQ scores, which has a mean of 125 and a standard...
Use the normal distribution of IQ scores, which has a mean of 125 and a standard deviation of 13, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity. :: Click the icon to view the table. %. Percentage of scores greater than 99 is (Round to two decimal places as needed.) i Data Table Standard Scores and Percentiles for a Normal Distribution Full data set e Standard score % Standard...
Based on data from a college, scores on a certain test are normally distributed with a...
Based on data from a college, scores on a certain test are normally distributed with a mean of 1527 and a standard deviation of 328. Find the percentage of scores between 871 and 1691 % (Round to two decimal places as needed.)??????????? Standard Scores and Percentiles for a Normal Distribution (cumulative values from the left) Standard score % Standard score % minus−3.0 0.13 0.1 53.98 minus−2.5 0.62 0.5 69.15 minus−2 2.28 0.9 81.59 minus−1.5 6.68 1 84.13 minus−1 15.87 1.5 93.32...
Based on data from a college, scores on a certain test are normally distributed with a...
Based on data from a college, scores on a certain test are normally distributed with a mean of 1549 and a standard deviation of 324. Find the percentage of scores less than 1063. ____ % ( round to two decimal places as needed). Data table standard scores and Percentiles for a Normal Distribution (Cumulative values from the left) Standard scores % Standard Score % -3.0 0.13% 0.1 53.98 -2.5 0.62% 0.5 69.15 -2 2.28% 0.9 81.59 -1.5 6.68% 1 84.13...
Based on data from a college, scores on a certain test are normally distributed with a...
Based on data from a college, scores on a certain test are normally distributed with a means of 1549 and a standard deviation of 324 Find the percentage scores between 1387 and 1711 ______% ( round to two decimal places as needed. standard scores % (cumulative values from the left) -3 0.13% 0.1 53.98 -2.5 0.62% 0.5 69.15 -2 2.28% 0.9 81.59 -1.5 6.68% 1 84.13 -1 15.87 % 1.5 93.32 -0.9 18.41 % 2 97.72 -0.5 30.85 % 2.5...
Scores on the verbal Graduate Record Exam (GRE) have a mean of 453 and a standard...
Scores on the verbal Graduate Record Exam (GRE) have a mean of
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Multiple question parts. A normal distribution of heights of adult women from a certain region has...
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A normal distribution of heights of adult women from a certain region has a mean of 62.7 inches and a standard deviation of 3 inches. Give the standard score and approximate percentiles for a woman with each of the following heights. a. 64.2 inches b. 61.2 inches c. 58.2 inches d. 67.2 inches Click the icon to view the standard scores and percentiles for a normal distribution. a. The standard score is and the percentile is (Type...
The scores on the verbal section of a certain graduate school entrance exam have a mean...
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Find the 90th percentile. The scores for a certain test of intelligence are normally distributed with...
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The scores for a certain test of intelligence are normally distributed with mean 85 and standard deviation 11. Find the 90th percentile of these scores E Click the icon to view the table of standard scores and percentiles. More Info The 90th percentile is (Round to the nearest whole number as needed.) Standard Scores and Percentiles z-score Percentile z-score Percentile z-score Percentile z-score Percentile 00.02 3.0 00.13 2.9 00.19 2.8 00.26 2.7 00.35 2.6 00.47 2.5...
Use the normal distribution of IQ scores, which has a mean of 125 and a standard deviation of 13, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity. :: Click the icon to view the table. %. Percentage of scores greater than 99 is (Round to two decimal places as needed.) i Data Table Standard Scores and Percentiles for a Normal Distribution Full data set e Standard score % Standard...
Scores on the verbal Graduate Record Exam (GRE) have a mean of
453 and a standard deviation of 122. Scores on the quantitative GRE
have a mean of 651 and a standard deviation of 157. A perfect score
on either exam is 800. Assuming the scores are normally
distributed, what percentage of students score 800 on the
quantitative exam?
The percentage of students that score 800 on the quantitative
exam is approximately _% (Round to the nearest percent as
needed.)...
Multiple question parts.
A normal distribution of heights of adult women from a certain region has a mean of 62.7 inches and a standard deviation of 3 inches. Give the standard score and approximate percentiles for a woman with each of the following heights. a. 64.2 inches b. 61.2 inches c. 58.2 inches d. 67.2 inches Click the icon to view the standard scores and percentiles for a normal distribution. a. The standard score is and the percentile is (Type...
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