Exercise 1: Average Age of Adults Write a program that computes the average age of adults in a sample population. The program prompts the user to enter the size of the population and then using a for loop, it shall prompt the user for the age of every person in the population. The program shall compute the average age of adults only. Produce output as shown in the sample input/output. Note: an adult is a person whose age is 2 18. Sample input/output: Enter size of population sample : 6 Enter age of person # 1: 20 Enter age of person # 2: 10 Enter age of person #3: 15 Enter age of person # 4: 24 Enter age of person #5: 19 Enter age of person #6: 18 There are 4 adults in the population sample. The average age of adults is: 20.25 C++ language