# college Mathematics

posted by .

A survey of 59 customers was taken at a book store regarding the type of novels purchased. The survey found 34 customers purchased mysteries, 27 purchased science fiction, 20 purchased romance novels, 13 purchased mysteries and science fiction, 10 purchased mysteries and romance novels, 7 purchased science fiction and romance novels, and 3 purchased all types.

A) How many purchased mysteries and science fiction, but not romance?

B)How many purchased mysteries or science fiction?

C) How many purchase exactly 2 types?

• college Mathematics -

Just draw a Venn diagram. There are 3 regions, we'll call them m,s,r, with overlapping regions labeled, ms,mr,rs,mrs.

Now start filling them in, from the inside out

mrs = 3
rs = 7-3 = 4
mr = 10-3 = 7
ms = 13-3 = 10
m = 34-(3+7+10) = 21
r = 20-(3+4+7) = 6
s = 27-(3+4+10) = 10

Now you can answer the questions

## Similar Questions

1. ### math

In most businesses, increasing prices of products can negatively impact the number of customers. A bus company in a small town has an average number of riders of 800 per day. The bus company charges \$2.25 for a ride. They conducted …
2. ### Statistics

According to a recent survey, 75% of all customers will return to the same grocery store. Suppose 8 customers are selected at random: A) What is the probability that exactly five of the customers will return?
3. ### College Math

Movies A survey of 350 customers was taken at Regal Cinemas in Austin, Texas, regarding the type of movies customers liked. The following information was determined. • 196 liked dramas. • 153 liked comedies. • 88 liked science …
4. ### statistic

A survey was made of 100 customers in a department store. 70 of the customers indicated they visited the store because of a newspaper advertisement. The remainder had not seen the ad. A total of 40 customers made purchases; of these …
5. ### algebra

a survey of 70 customers was taken at a bookstore regarding the type of books purchased. the survey found that 42 customers purchased mysteries,35 purchased science fiction, 28 purchased romance novels,19 purchased mysteries and sicence …
6. ### Math Help Please? c: Thank you :3

At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random?
7. ### Math

At your summer with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following Methods is most likely to be random?
8. ### Statistics

The records of a computer retail store show that out of the 100 customers who purchased a desktop computer last month, 69 also purchased a service plan that extends the warranty for an extra year. Out of the 25 customers who purchased …
9. ### Math

A survey of 59 customers was taken at a bookstore regarding the types of books purchased. The survey found 36 customers purchased mysteries, 28 purchased science fiction, 21 purchased romance novels, 15 purchased mysteries and science …
10. ### algebra

A survey of 70 Customers was taken at a bookstore regarding the types of books purchased. The survey found that 42 customers purchased mysteries, 34 purchased science fiction, 24 purchased romance novels, 18 purchased mysteries and …

More Similar Questions