CHECK THE BASICS

For Exercise 24.1, see page 576; for Exercise 24.2, see page 578; and for Exercise 24.3, see page 580.

The Pew Research Center conducts an annual Internet Project, which includes research related to social networking. The following two-way table about the percentages of cell phone owners who use a social networking site on their phone is broken down by age and is based on data reported by Pew as of January 2014.

Use social networking on phone Yes No Total
Age 18–29 228 112 340
Age 30–49 281 281 562
Age 50–64 106 481 587
Age 65+ 21 408 429
Total 636 1282 1918

Exercise 24.4, Exercise 24.5, Exercise 24.6, Exercise 24.7 and Exercise 24.8 are based on this table

Question 24.4

24.4 Social networking by phone. What percentage of all respondents use social networking on their phones?

  1. (a) 17.7%

  2. (b) 33.2%

  3. (c) 35.8%

  4. (d) 67.1%

Question 24.5

24.5 Young adults and social networking by phone. What percentage of those aged 18–29 use social networking on their phones?

  1. (a) 17.7%

  2. (b) 33.2%

  3. (c) 35.8%

  4. (d) 67.1%

Question 24.6

24.6 Older adults in the survey. What percentage of all respondents were aged 50–64?

  1. (a) 16.7%

  2. (b) 18.1%

  3. (c) 30.6%

  4. (d) 33.1%

Question 24.7

24.7 Older adults and social networking by phone. What percentage of those aged 50–64 use social networking on their phones?

  1. (a) 16.7%

  2. (b) 18.1%

  3. (c) 30.6%

  4. (d) 33.1%

Question 24.8

24.8 What does age have to do with it? Does it appear that there is a relationship between age and whether a person uses social networking on his or her phone?

  1. (a) No, age should have nothing to do with whether a person uses social networking on his or her phone.

  2. (b) No, the percentages of young adults and older adults who use social networking on their phones are the same, which means there is no relationship.

  3. (c) Yes, older people do not know how to use social networking on their phones.

  4. (d) Yes, the percentages of young adults and older adults who use social networking on their phones are the same, which means there is some relationship.