1. An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were

measured. Group A was then given caffeinated soda and group B was given

caffeine-free soda. One hour after drinking the soda, the pulse rates were

measured

Independent variable:

Dependent Variable:

The independent variable is whether The dependent variable is the two groups

drinking caffeinated soda ncreases pulse of people at rest

rate