Study the following code, and then answer Questions 1 4.

The complete program is saved in the file named Rainfall.cpp .

You may want to compile and execute the program to help you answer the questions.

const int DAYS_IN_WEEK = 7;

for(counter = 1; counter <= DAYS_IN_WEEK; counter++)

{

cout << "Enter rainfall amount for Day " + counter << ": ";

cin >> rainfall; cout << "Day " << counter << "rainfall amount is " <<

rainfall << " inches" << endl;

sum += rainfall;

}

// calculate average

average = sum / DAYS_IN_WEEK;

1. What happens when you compile this program if the variable sum is not initialized with the value 0 ?

2. Could you replace sum += rainfall; with sum = sum + rainfall; ?

3. The variables sum , rainfall , and average should be declared to be what data type to calculate the most accurate average rainfall?

4. Could you replace DAYS_IN_WEEK in the statement average = sum / DAYS_IN_WEEK; with the variable named counter and still get the desired result? Explain.