Scenerio #1- ski resorts are interested in the mean age that children take their first ski and snowboard lessons. They ned this information to plan their ski classes optimally.

Q- 1 What is the variable of this study

a. The variable is the number of ski or snowboarding lessons offered at the king resort

b. the variable is the age of each child when he or she takes his or her first skiing or snowboarding lesson.

c. the variable is the number of children taking skiing and snowboarding lessons

Scenerio #2 A cardiologist is interested in the mean recovery period of her patients who have had heart attacks

Q- what is the samplle of this study?

a. the sample is a group of the cardiologist patients who have had heart attack

b. the sample is all of the cardiologist patients

c. the sample is a group of the cardiologist patients with heart disease

briefly explain answers please!