Write a void function average that can calculate the average of up to 3 double numbers

void average(double& average, double num1, double num2, double num3)

Complete this activity using either overloading (You will have 3 different functions with the same name) or using default arguments

1 #include kio m> 3 using namespace std; 6 int main() double avgNu 0.0 8 average (avgNum, 2.0 3.0 4.0); 9 cout avgNull endl 10 average (avgNum, 2.0 3.0) 11 cout avgNull endl 12 main.cpp