Question

C. Identify the Sampling Techniques

1. Every seventh customer entering a shopping mall is asked to select his or her favorite store.

2. In a medical study, patients are classified according to four blood types O, A, B and AB, whether they are RH- or RH+ and also according to whether their blood pressure is low, normal or high.

3. The numbers on the balls identify the chosen members of the population.

4. Nurses required details relating to 20 women patients who had the disease, patients were matched with controls by age, sex, place of residence and social class.

5. Assign each member of the population a different number.

         

  

Answer 1