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Results of a Department of Education survey of SAT test scores in 22 states showed the following results. 11 states had an average composite test score of at least 1000 during the past 3 yr. 15 states had an increase of at least 10 points in the average composite score during the past 3 yr. 8 states had both an average composite SAT score of at least 1000 and showed an increase of at least 10 points during the past 3 yr. (a) How many of the 22 states had composite scores of less than 1000 and showed an increase of at least 10 points over the 3-yr period? states (b) How many of the 22 states had composite scores of at least 1000 and did not show an increase of at least 10 points over the 3-yr period? states

Results of a Department of Education survey of SAT test scores in 22 states showed the following results. 11 states had an average composite test score of at least 1000 during the past 3 yr. 15 states had an increase of at least 10 points in the average composite score during the past 3 yr. 8 states had both an average composite SAT score of at least 1000 and showed an increase of at least 10 points during the past 3 yr. (a) How many of the 22 states had composite scores of less than 1000 and showed an increase of at least 10 points over the 3-yr period? states (b) How many of the 22 states had composite scores of at least 1000 and did not show an increase of at least 10 points over the 3-yr period? states

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Results of a Department of Education survey of SAT test scores in 22 states showed the following results. 11 states had an average composite test score of at least 1000 during the past 3 yr. 15 states had an increase of at least 10 points in the average composite score during the past 3 yr. 8 states had both an average composite SAT score of at least 1000 and showed an increase of at least 10 points during the past 3 yr. (a) How many of the 22 states had composite scores of less than 1000 and showed an increase of at least 10 points over the 3-yr period? states (b) How many of the 22 states had composite scores of at least 1000 and did not show an increase of at least 10 points over the 3-yr period? states
Transcribed Image Text:Results of a Department of Education survey of SAT test scores in 22 states showed the following results. 11 states had an average composite test score of at least 1000 during the past 3 yr. 15 states had an increase of at least 10 points in the average composite score during the past 3 yr. 8 states had both an average composite SAT score of at least 1000 and showed an increase of at least 10 points during the past 3 yr. (a) How many of the 22 states had composite scores of less than 1000 and showed an increase of at least 10 points over the 3-yr period? states (b) How many of the 22 states had composite scores of at least 1000 and did not show an increase of at least 10 points over the 3-yr period? states
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