CRJ 303 Homework 2

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1) Below is a table of stressors for individuals. Individuals were asked, what type of issue is the most stressful for you? What is the variation ratio for the following table?

Frequency (f) Health Issues 98 Financial Issues 212 Family Issues 101 Relationship Issues 229 Work Issues 187 Total 827

a. 0.276 b. 0.723 c. 0.256 d. 0.567

2) What is the modal category for the above table?

a. Health Issues b. Financial Issues c. Family Issues d. Relationship Issues

3) Young adult (18-25) respondents to a survey were asked what their relationship status

is. What is the variation ratio for the table below?

Frequency

(f) Single 402 In a Relationship 605 Cohabitating 230 Married 101 Divorced/Separated 87 Total 1425

a. 0.424 b. 0.234 c. 0.638 d. 0.575

CRJ 303 Homework 2

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4) The following are graduate student ages. What is the median? 27, 28, 24, 23, 25, 23 a. 23.5 b. 24 c. 24.5 d. 27.5

5) The following are graduate student ages. What is the mode? 27, 28, 24, 23, 25, 23

a. 23 b. 24 c. 25 d. No mode

6) What is the variance for the following set of scores? 4, 3, 2, 7, 6

a. 3.2 b. 5.2 c. 4.3 d. 2.1

7) What is the variance for the following set of scores? 67, 34, 65, 56, 70

a. 14.60 b. 213.3 c. 198.2 d. 58.4

8) What is the standard deviation for the following set of prices for drinks at Starbucks?

3.46, 5.40, 5.67, 4.52, 2.00 a. 2.43 b. 1.90 c. 2.12 d. 1.51

9) Say in a sample of 100, I have a variance of 43.1. What’s my standard deviation?

a. 5.98 b. 6.57 c. 4.38 d. 5.90

10) Say in a sample of 44, I have a variance of 254.9. What’s my standard deviation?

a. 17.43 b. 12.78 c. 10.87 d. 15.97