Age
Race
Income
Score
21
W
less than $10,000
29
33
B
$20,000 - $23,000
32
41
B
more than $100,000
84
26
A
$30,000 - $40,000
78
22
O
$10,000 - $20,000
87
19
A
$40,000 - $50,000
42
34
W
$50,000 - $60,000
21
26
W
less than $10,000
91
1. Which of the following best describes the Income
variable?
a. categorical, dichotomous
b. categorical, ordinal
c. quantitative, continuous
d. quantitative, discrete
e. categorical
2. Which type of plot would be most useful for visualizing the
relationship between Age and job satisfaction Score?
a. histogram
b. single box plot
c. side by side box plot
d. scatter plot
e. dot plot
3. Below are some summary statistics from the score variable.
Which of the following is true? min Q1 median Q3 max mean sd n
missing 30 57 69.5 77 99 65.075 16.09361 200 0
a. the standard deviation estimate is not possible because score
is a whole number
b. there is evidence that the distribution of score is
right-skewed
c. the minimum value of 30 would be identified as out outlier in
a box plot
d. there were more survey respondents who reported job
satisfaction scores less than 57 than survey respondents reported
job satisfaction scores greater than 77
e. none of the above are true