Q1:

When a sample is chosen from a population and every member of the population has an equal chance of being selected it is called: 
A. a census B. a biased sample C. a random sample D. a popular sample 
Answer 1:


Q2:

How often is a CENSUS held in Australia and New Zealand? 
A. Every three years B. Every hundred years C. Every year D. Every five years 
Answer 2:


Q3:

If a sample is taken and it is not random, any conclusions are likely to be: 
A. very accurate B. unbiased C. biased D. totally wrong 
Answer 3:


Q4:

A sample for a survey on the eating habits of all Queenslanders is taken by selecting every 50th person in the telephone directory. Would this produce a random sample? 
A.^{ }No B. Yes 
Answer 4:


Q5:

True or false?
In the Lotto draw, the seven balls chosen form a random sample of the 40 balls?

A. True B. False 
Answer 5:


Q6:

The first 20 people to arrive at work are asked their opinions of the boss! Would the results of this survey be likely to be biased? 
A. No B. Yes 
Answer 6:


Q7:

True or false?
Bias in a survey can be avoided by selecting random samples.

A. True B. False 
Answer 7:


Q8:

A sample for a survey on the study habits of all students in a secondary school is taken by selecting every 10th person on the school roll. Would this produce a random sample? 
A. No B. Yes 
Answer 8:


Q9:

True or false?
In a random sample every member of the population has the same chance of being selected.

A. True B. False 
Answer 9:


Q10:

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

