Ski resorts are interested in the mean age that children take their first ski and snowboard lessons. they need this information to plan their ski classes optimally. define the following in terms of the study. give examples where appropriate.
a. the parameter is the average age of all people taking skiing or snowboarding lessons.
b. the parameter is the average age of all children taking skiing or snowboarding lessons on a given day.
c. the parameter is the ages of everyone at the ski resort.
d. the parameter is the average age of all children when they take their first skiing or snowboarding lesson.