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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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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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