• Write a function with the following prototype : double findAverage(double[], int);.
  • This method should accept an array of doubles and return the average.
• Write a function with the following prototype: void printOutArray(double[] int);
  • This method should print out an array of doubles of any size in columns of 5.
• In your main method, create 3 double arrays of different sizes (at least 10 or larger).
  • Fill all three arrays with random numbers.
    • Use : C++ Random Numbers
  • Then find the average of all three arrays, showing that your method works
  • Print out the array using your 2nd method. then print out the average of that array.