Question

1. Which of the following methods is the best to collect the number of the visitors for a
shopping mall in a particular day of a week?
A. Experiment
B. Direct observation
C. Focus group interview
D. Statistical publication

2. The following methods are probability sampling methods to collect data except
A. Systematic sampling
B. Stratified sampling
C. Simple random sampling
D. Judgement sampling

3. In a family with 4 children, what is the probability that the family has the same number of boys
and girls?
A.1/6
B.3/9
C.1/4
D.1/2

Answer 1

1) D) Statistical Publication

2) B) Stratified sampling

3) C) 1/4

Answer 2

1. The method of statistical publication is the best one to collect the number of the visitors for a shopping mall in a particular day of a week?

2. The following methods are probability sampling methods to collect data except

Stratified sampling.

3. In a family with 4 children, the probability that the family has the same number of boys and girls is 1/2.

Total number of children= 4

So equal number means 2 girls and 2 boys so there is 1 such outcome.

So probability is 1/4.