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28. Analytical GRE Scores. The Graduate Record Examination (GRE) is a standardized test that students usually take before entering graduate school. According to the document GRE Listening, Learn- ing, Leading, a publication of the Educational Testing Service, the scores on the analytical portion of the GRE have mean 3.56 points and standard deviation 0.86 points. Assuming that these scores are (approximately) normally distributed, a. obtain and interpret the quartiles. b. find and interpret the 99th percentile.

28. Analytical GRE Scores. The Graduate Record Examination (GRE) is a standardized test that students usually take before entering graduate school. According to the document GRE Listening, Learn- ing, Leading, a publication of the Educational Testing Service, the scores on the analytical portion of the GRE have mean 3.56 points and standard deviation 0.86 points. Assuming that these scores are (approximately) normally distributed, a. obtain and interpret the quartiles. b. find and interpret the 99th percentile.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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28. Analytical GRE Scores. The Graduate Record Examination (GRE) is a standardized test that students usually take before entering graduate school. According to the document GRE Listening, Learn- ing, Leading, a publication of the Educational Testing Service, the scores on the analytical portion of the GRE have mean 3.56 points and standard deviation 0.86 points. Assuming that these scores are (approximately) normally distributed, a. obtain and interpret the quartiles. b. find and interpret the 99th percentile. 29. Analytical GRE Scores. Refer to Problem 28, and fill in the following blanks. a. Approximately 68% of students who took the analytical portion of the GRE scored between. -and . b. Approximately 95% of students who took the analytical portion of the GRE scored between and . c. Approximately 99.7% of students who took the analytical portion of the GRE scored between and .
Transcribed Image Text:28. Analytical GRE Scores. The Graduate Record Examination (GRE) is a standardized test that students usually take before entering graduate school. According to the document GRE Listening, Learn- ing, Leading, a publication of the Educational Testing Service, the scores on the analytical portion of the GRE have mean 3.56 points and standard deviation 0.86 points. Assuming that these scores are (approximately) normally distributed, a. obtain and interpret the quartiles. b. find and interpret the 99th percentile. 29. Analytical GRE Scores. Refer to Problem 28, and fill in the following blanks. a. Approximately 68% of students who took the analytical portion of the GRE scored between. -and . b. Approximately 95% of students who took the analytical portion of the GRE scored between and . c. Approximately 99.7% of students who took the analytical portion of the GRE scored between and .
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