Find the indicated sets.

### Exercise 1

List all subsets of the following set.

#### Solution

### Exercise 2

List all subsets of the following set.

### Exercise 3

List the elements of the following set.

#### Solution

### Exercise 4

List the elements of the following set.

In Problems 5 - 8, let

List the members of the following sets.

### Exercise 5

#### Solution

### Exercise 6

### Exercise 7

#### Solution

### Exercise 8

In 9 - 12, let

List the members of the following sets.

### Exercise 9

#### Solution

### Exercise 10

### Exercise 11

#### Solution

Ø

### Exercise 12

Find the number of elements in the following sets.

### Exercise 13

In Mrs. Yamamoto's class of 35 students, 12 students are taking history, 18 are taking English, and 4 are taking both. Draw a Venn diagram and determine how many students are taking neither history nor English?

#### Solution

9 students

### Exercise 14

In the County of Santa Clara 700,000 people read the San Jose Mercury News, 400,000 people read the San Francisco Examiner, and 100,000 read both newspapers. How many read either the Mercury News or the Examiner?

### Exercise 15

A survey of athletes revealed that for their minor aches and pains, 30 used aspirin, 50 used ibuprofen, and 15 used both. How many athletes were surveyed?

#### Solution

65

### Exercise 16

In a survey of computer users, it was found that 50 use HP printers, 30 use IBM printers, 20 use Apple printers, 13 use HP and IBM, 9 use HP and Apple, 7 use IBM and Apple, and 3 use all three. How many use at least one of these Brands?

### Exercise 17

This quarter, a survey of 100 students at De Anza college finds that 50 take math, 40 take English, and 30 take history. Of these 15 take English and math, 10 take English and history, 10 take math and history, and 5 take all three subjects. Draw a Venn diagram and determine the following.

- The number of students taking math but not the other two subjects.
- The number of students taking English or math but not history.
- The number of students taking none of these subjects.

#### Solution

- 30
- 60
- 10

### Exercise 18

In a survey of investors it was found that 100 invested in stocks, 60 in mutual funds, and 50 in bonds. Of these, 35 invested in stocks and mutual funds, 30 in mutual funds and bonds, 28 in stocks and bonds, and 20 in all three. Determine the following.

The number of investors that participated in the survey.

How many invested in stocks or mutual funds but not in bonds?

How many invested in exactly one type of investment?

Comments:"Reviewer's Comments: 'I recommend this book for undergraduates. The content is especially useful for those in finance, probability statistics, and linear programming. The course material is […]"