Question

MATH225 Statistical Reasoning for the Health Sciences

Week 2 Assignment Frequency Tables

Question William wishes to view a frequency table for grouped
data using his monthly credit card statements for the last 20
months, shown below. Construct the table for William using six
classes.

1184, 1247, 945, 1124, 1034, 1352, 1025, 1439, 1136, 1439,
1368, 1057, 1130, 1259, 1256, 1381, 838, 1342, 842, 1395

Question A small startup company wishes to know how many
hours, per week, that its employees spend commuting to and from
work. The number of hours for each employee are shown below.
Construct a frequency table for grouped data using four classes.

9, 18, 18, 14, 13, 4, 12, 9, 13, 10, 21, 12, 19, 20, 13, 3,
5, 20, 17, 1

Question As a member of a marketing team, you have been
tasked with determining the number of DVDs that people have rented
over the past six months. Their responses are summarized in the
relative frequency table below.

What is the cumulative relative frequency of customers who
rent 27 or fewer DVDs?

Question A group of students were surveyed about the
number of states they have visited (including their own). Their
responses are summarized in the relative frequency table below.

What is the cumulative relative frequency of students that
have visited 3 or fewer states?

Question Given the relative frequency table below, which of
the following is the corresponding cumulative relative frequency
table?

Value

Frequency

4

0.35

5

0.2

6

0.05

7

0.4

Value Frequency

4
0.3

5
0.6

6
0.65

7
1

Value Frequency

4
0.35

5
0.6

6
0.65

7
1

Value Frequency

4
0.3

5
0.55

6
0.6

7
1

Value Frequency

4
0.35

5
0.55

6
0.6

7
1

Question A group of students were surveyed about the number
of siblings they have. The frequencies and relative frequencies of
their responses are shown in the below.

Complete the cumulative relative frequency table.

Number of
Siblings
Relative Frequency

0
0.18

1
0.33

2
0.16

3
0.14

4 or
more
0.19

Question As the manager of a store, you wish to determine the
amount of money that people who visit this store are willing to
spend on impulse buys on products placed near the checkout
register. You sample twenty individuals and records their
responses. Construct a frequency table for grouped data using five
classes.

8,18,15,10,29,4,15,2,4,9,16,14,13,8,25,25,27,1,15,24

Question A data set is summarized in the frequency table
below. Using the table, determine the number of values less than or
equal to 5. Give your answer as a single number. For example if you
found the number of values was 19, you would enter 19.

Value Frequency

3
9

4
4

5
3

6
7

7
6

8
3

9
3

10
5

11
4

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