## Frequency Test

Unit Test #49

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

Q1:

Which type of graph is best for showing a frequency distribution for grouped continuous data? A. bar graph
B. pie chart
C. histogram
D. stem and leaf diagram

Q2: The graph shows measurements to the nearest cm.

What is the frequency of heights between 171 and 181?

A. 3
B. 4
C. 5

D. 6

Q3:

What is the modal class in the graph above?

A. 161 -171
B. 171 − 181
C. 181 − 191
D. 191 − 200

Q4:

What are the limits of a measurement of 171 cm in the graph above? A. 170.5 and 171.5
B. 170.9 and 171.1
C. 170.45 and 171.55
D. 170 and 172

Q5:

The table shows the number of CDs bought by 20 people in a month.
 No. of CDs Frequency (f) 0 4 1 7 2 6 3 3

How many people bought 1 CD?

A. 3
B. 4
C. 6
D. 7

Q6:

In question 5, how many people bought more than 1 CD? A. 7
B. 6
C. 9
D. 4

Q7:

In question 5, what is the mode for the number of CDs bought? A. 0
B. 1
C. 2
D. 3

Q8:

In question 5, what is the mean number of CDs bought? A. 1.4
B. 1
C. 1.5
D. 2

Q9:

In question 5, what is the range of the number of CDs bought? A. 3
B. 4
C. 6
D. 7

Q10:

The value with highest frequency in a frequency distribution is called

A. the median
B. the mode
C. the mean
D. the range