Question 1
0.5 out of 0.5 points
What is the median of the following set of first-time statistics students’
ages: 18, 18, 18, 19, 19, 19, 19, 20, 22, 22, 23, 23, 23, 24, 25, 26, 26, 29,
33, 64?
Selected
Answer:
22.
5
Question 2
0.5 out of 0.5 points
Calculate the mean for these data:
2, 2, 3, 3, 4, 6
Selected
Answer:
3.3
3
Question 3
0.5 out of 0.5 points
A researcher asked respondents for their ages. She obtained this data:
Subject’s age: 21, 22, 19, 23, 51, 65, 25, 24, 30, 22, 24, 28, 26, 22, 27
What is the mode for this set of data?
Selected
Answer:
2
2
Question 4
0.5 out of 0.5 points
Which measure of central tendency is appropriate for the following data?
Gender – N = 696, 255 (37%) male (coded as 0 in database) and 441 (63%) female (coded as

1 in database)
Selected
Answer:
Mode = 1 or
female
Question 5
0.5 out of 0.5 points
A researcher asked respondents to list their ages. She obtained the
following data:
Subject’s age: 21, 22, 19, 23, 51, 65, 25, 24, 30, 22, 24, 28, 26, 22, 27
What is the median for this set of data?
Selected
Answer:
2
4
Question 6
0.5 out of 0.5 points
What is the first thing you would do to calculate the median for these data?
1, 6, 13, 2, 5, 3, 27, 4
Selected
Answer:
Arrange the numbers in
order.
Question 7
0.5 out of 0.5 points
A researcher asked his respondents for their education level. He obtained
this data:
Data – Education in 4 categories: less than HS, HS diploma or GED, Associate or
Baccalaureate degree, Graduate degree (MS or doctorate): See table below
Education Category
N
%
less than HS
6
20

HS diploma or GED
12
40
Associate or Baccalaureate degree
10
33
Graduate degree (MS or
doctorate)
2
7
What is the mode for this data?
Selected
Answer:
High School Diploma or
GED
Question 8
0.5 out of 0.5 points
A researcher asked respondents for their ages. She obtained the following
data:
Subject’s age: 21, 22, 19, 23, 51, 65, 25, 24, 30, 22, 24, 28, 26, 22, 27
What is the mean for this set of data?
Selected
Answer:
28.6
Answer
Feedback:
unable to determine from the
information provided
Question 9
0.5 out of 0.5 points
What is the best measure of central tendency for this interval level data set?
3, 4, 5, 6, 6, 6, 7, 8, 8, 8, 10
Selected
Answer:
me
an
Question 10

0.5 out of 0.5 points
For this distribution of interval level data, calculate the appropriate measure of central
tendency:
1, 1, 2, 2, 2, 2, 2, 3, 7, 9, 10, 14, 14, 14, 14, 14, 17
Selected
Answer:
modes = 2 and
14
Question 11
0.5 out of 0.5 points
A researcher asked his respondents for their education level. He obtained
this data:
Data – Education in 4 categories: less than HS, HS diploma or GED, Associate or
Baccalaureate degree, Graduate degree (MS or doctorate): See table below
Education Category
N
%
less than HS
6
20
HS diploma or GED
12
40
Associate or Baccalaureate degree
10
33
Graduate degree (MS or
doctorate)
2
7
What is the standard deviation for this data?

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