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.
14 states had an increase of at least 10 points in the average composite score during the past 3 yr.
6 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?

Question

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.
14 states had an increase of at least 10 points in the average composite score during the past 3 yr.
6 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?

anonymous · Answer

i keep getting 16 I think im doing it wrong

anonymous · Answer

the correct answer is 8 but I don't know how to get that