Answer:
The correct option is A: Standardization
Explanation:
Standardization is a method used in research for gathering and treating participants for a particular study. It is used when the result of one group is to be compared with the result of a second group, and hence each group must be given equal opportunities to succeed. This process is often lengthy. Bob used this sample of children because he wanted standardization.
A reason could be to lose weight or lowering blood pressure and having higher energy levels.
As we get older out hearts get slower so It is good to stay active because it keeps your heart rate going and pumping blood throughout out the blood vessels.
ANSWER : I think it’s C. A card is drawn from the box and the number is even.
Explanation:
