Finite Math 200 Question Help
9. [-/2 Points] DETAILS TANFIN12 6.2.046. MY NOTES PRACTICE ANOTHER Results of a Department of Education survey of SAT test scores in 22 states showed the following results. 9 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. 7 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 Need Help? Read It Watch It 10. [-/4 Points] DETAILS TANFIN12 6.2.047. MY NOTES PRACTICE ANOTHER In a survey, 150 consumers were asked about their buying preferences concerning a product that is sold in the market under three labels. The results were as follows. 10 buy only those sold under label A. 23 buy only those sold under label B. 26 buy only those sold under label C. 14 buy only those sold under labels A and B. 9 buy only those sold under labels A and C. 15 buy only those sold under labels B and C. 8 buy the product sold under all three labels. How many of the consumers surveyed buy the product sold under (a) At least one of the three labels? consumers (b) Labels A and B but not C? consumers (c) Label A? consumers (d) None of these labels? consumers Need Help? Read It Watch It 11. [-/4 Points] DETAILS TANFIN12 6.2.048. MY NOTES PRACTICE ANOTHER To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained. 135 students ate breakfast. 182 students ate lunch 278 students ate dinner. 62 students ate breakfast and lunch. 115 students ate breakfast and dinner. 88 students ate lunch and dinner. 54 students ate all three meals. How many students ate (a) At least one meal in the cafeteria? students (b) Exactly one meal in the cafeteria? students (c) Only dinner in the cafeteria? students (d) Exactly two meals in the cafeteria? students Need Help? Read It Watch It