Q1:
|
If a sample is taken for a survey and every member of a population has an equal chance of being chosen the sample is said to be: |
A. complete B. selective C. biased D. random |
Answer 1: |
|
Q2:
|
When a sample does not accurately represent the group from which it is taken, it is called: |
A. a census B. a biased sample C. a random sample D. a population |
Answer 2: |
|
Q3:
|
A census involves surveying every member of a population.
True or false?
|
A. True B. False |
Answer 3: |
|
Q4:
|
If a sample is taken and it is not random, any conclusions are likely to be:
|
A. very accurate B. unbiased C. wrong D. biased |
Answer 4: |
|
Q5:
|
How often is a CENSUS held in New Zealand and Australia?
|
A. Every five years B. Every hundred years C. Every year D. Every three years |
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. Yes B. No |
Answer 6: |
|
Q7:
|
True or false?
Bias in a survey can be avoided by selecting random samples.
|
A. False B. True |
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 alphabetical school roll. Would this produce a random sample? |
A. Yes B. No |
Answer 8: |
|
Q9:
|
True or false?
In a random sample every member of the population has the 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: |
|