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. column graph 
Answer 1:


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

Answer 2:


Q3:

What is the modal class in the graph above? 
A. 161 171 B. 171  181 C. 181  191 D. 191  200

Answer 3:


Q4:

Which interval would contain the median? 
A. 161 171 B. 171  181 C. 181  191 D. 191  200 
Answer 4:


Q5:

Estimate the median height from the graph above.

A. 180 cm B. 185 cm C. 190 cm D. 195 cm 
Answer 5:


Q6:

In question 5, what is the upper quartile? 
A. 178 cm B. 185 cm C. 187 cm D. 193 cm 
Answer 6:


Q7:

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 more than 1 CD?

A. 7 B. 4 C. 16 D. 9 
Answer 7:


Q8:

In question 5, what is the mean number of CDs bought? 
A. 1.4 B. 1 C. 1.5 D. 2 
Answer 8:


Q9:

In question 5, what is the range of the number of CDs bought? 
A. 3 B. 4 C. 6 D. 7 
Answer 9:


Q10:

The value with the highest frequency in a frequency distribution is called:

A. the median B. the mode C. the mean D. the range 
Answer 10:

