University of Phoenix Material
Week 1 Practice Worksheet
Prepare a written response to the following questions.
Chapter 1
1. Explain and give an example for each of the following types of variables:
a. Nominal:
b. Ordinal:
c. Interval:
d. Ratio scale:
e. Continuous:
f. Discrete:
g. Quantitative:
h. Qualitative:
2. Following are the speeds of 40 cars clocked by radar on a particular road in a 35-mph zone on a particular afternoon:
30, 36, 42, 36, 30, 52, 36, 34, 36, 33, 30, 32, 35, 32, 37, 34, 36, 31, 35, 20
24, 46, 23, 31, 32, 45, 34, 37, 28, 40, 34, 38, 40, 52, 31, 33, 15, 27, 36, 40
Make a frequency table and a histogram, then describe the general shape of the distribution.
3. Raskauskas and Stoltz (2007) asked a group of 84 adolescents about their involvement in traditional and electronic bullying. The researchers defined electronic bullying as “…a means of bullying in which peers use electronics {such as text messages, emails, and defaming Web sites} to taunt, threaten, harass, and/or intimidate a peer” (p.565). The table below is a frequency table showing the adolescents’ reported incidence of being victims or perpetrators or traditional and electronic bullying.
a. Using this table as an example, explain the idea of a frequency table to a person who has never had a course in statistics.
b. Explain the general meaning of the pattern of results.
Incidence of Traditional and Electronic Bullying and Victimization (N=84)
Forms of Bullying
N
%
Electronic victims
41
48.8
Text-message victim
27
32.1
Internet victim (websites, chatrooms)
13
15.5
Picture-phone victim
8
9.5
Traditional Victims
60
71.4
Physical victim
38
45.2
Teasing victim
50
59.5
Rumors victim
32
38.6
Exclusion victim
30
50
Electronic Bullies
18
21.4
Text-message bully
18
21.4
Internet bully
11
13.1
Traditional Bullies
54
64.3
Physical bully
29
34.5
...