You Are the Owner of a Camping Site and Want

Multiple Choice

You are the owner of a camping site and want to estimate the average age of your customers.For this purpose,you select a representative sample of your clients and offer them a discount good for their next visit as compensation for filling out a short questionnaire that includes relevant age intervals.The average age of the customers who fill out the questionnaire is:

A) a measurement
B) data
C) a statistic
D) a parameter
E) a census