Section 9.1 Extra In-Class Exercises
The amount (in dollars) paid by 20
students for textbooks during the fall
term are given on the right.
Complete the frequency table below.
INTERVAL
10 – 19.99
20 – 29.99
30 – 39.99
40 – 49.99
50 – 59.99
60 – 69.99
21
55
23
31
33
25
36
26
28
41
61
43
45
63
48
65
26
61
55
48
FREQUENCY
Does the histogram below represent this data?
8
6
4
2
0
10–19.99 20–29.99 30–39.99 40–49.99 50–59.99 60–69.99
For the following set of numbers, find the mean:
14, 16, 27, 12, 27, 17, 13
Find the mean of the quiz scores in the table below.
Round answer to nearest tenth.
VALUE
2
11
13
14
FREQUENCY
2
4
2
5
For the following set of numbers, find the mode.
68, 70, 68, 76, 70, 65, 72
For the following set of numbers, find the median.
11, 13, 24, 9, 24, 14, 10
For the following set of numbers, find the median.
Round to the nearest tenth as needed.
49, 66, 62, 41, 46, 53
The number of recognized blood types varies by species, as indicated by
the table below. Find the mean, median, and mode of this data. For the
mean, round to two decimal places as needed.
ANIMAL # OF BLOOD TYPES
A
22
B
18
C
16
D
12
E
10
F
8
G
8
H
5
I
4
J
4
K
3
L
3
M
2