Data

Question 1

sampling techniques

Answer 1

simple random sampling, systematic sampling, stratified sampling

Question 2

simple random sampling

Answer 2

put them all together and pick randomly

Question 3

systematic sampling

Answer 3

put the population into a list and pick every eg. 10th person

Question 4

stratified sampling

Answer 4

where you pick data in proportion to the number of items eg. boys to girls