Q1:

When a sample does not accurately represent the group from which it is taken this is called 
A. a census B. a biased sample C. a random sample D. a population 
Answer 1:


Q2:

Which of the following could not be used to represent the average of a set of statistical data? 
A. range B. mean C. median D. mode 
Answer 2:


Q3:

Which of the following could be used to show the spread of a set of data? 
A range B. median C. mode D. mean 
Answer 3:


Q4:

The mean of 2, 4, 6 and 6 is 
A.^{ }4.5 B. 5 C. 6 D. 4 
Answer 4:


Q5:

The range of 2, 4, 6 and 6 is 
A. 4.5 B. 5 C. 6 D. 4 
Answer 5:


Q6:

The median of 2, 4, 6 and 6 is 
A. 4.5 B. 5 C. 6 D. 4 
Answer 6:


Q7:

The mode of 2, 4, 6 and 6 is 
A. 4.5 B. 5 C. 6 D. 4 
Answer 7:


Q8:

Which type of graph would be best to compare the medians of two samples? 
A. bar graph B. pie chart C. box and whisker graph D. stem and leaf graph 
Answer 8:


Q9:

On a box and whisker graph, the whiskers give an indication of 
A. the quartiles B. the median C. outlying values D. the mean 
Answer 9:


Q10:

A survey which covers everymember of a population is called 
A.^{ }a random sample B. a biased sample C. a census D. an election 
Answer 10:

