sampling

Question 1

random sampling

Answer 1

every person from target population has an equal chance of being picked for sample

Question 2

strength of random sampling

Answer 2

• representative sample
• generalisable results
• all members have an equal chance of being chosen

Question 3

weakness of random sampling

Answer 3

• time consuming
• impractical

Question 4

systematic sampling

Answer 4

members of target population are selected systematically

Question 5

strength of systematic sampling

Answer 5

• unbiased selection increases chance of achieving representative sample
• generalisable results

Question 6

weakness of systematic sampling

Answer 6

• periodic traits ( traits shared by every person) can result in unrepresentative results

Question 7

stratified sampling

Answer 7

• proportional representation of target population thats being selected
• reflects the proportions of certain sub groups within population e.g age gender