Given an array temps of double s, containing temperature data, compute the average temperature. store the average in a variable called avgtemp . besides temps and avgtemp , you may use only two other variables -- an int variable k and a double variable named total , which have been declared. suppose the the temps array had just four elements: 5.4, 8.0, 2.0, and 4.6.then the value of avgtemp that you would compute would be 5.0, because that is the average of the above four numbers.

#include <iostream>

using namespace std;

// average function

void average(double arr[], int n) {

double total = 0;

double avgTemp;

for (int i = 0; i < n; i++)

{

 // find temperatures total

 total = total + arr[i];

}

// find average

avgTemp = total / n;

cout << "\nAverage Temperature = " << avgTemp << endl;

}

// print temps[] array

void printArray(double arr[], int n) {

for (int i = 0; i < n; i++)

{

 cout << arr[i] << "   ";

}

}

int main() {

int const k = 5;

double temps[k];

// temperature value

double tempValue;  

// Enter 5 temperatures of your choice

for (int i = 0; i < k; i++)

{

 cout << "Enter Temperature value " << i+1 << ": ";

 cin >> tempValue;

 temps[i] = tempValue;

}

// Function call to print temps[] array

printArray(temps, k);  

// Function call to print average of given teperatures

average(temps, k);        

return 0;

}

Explanation:

•Inside main(), int constant k is created to set the maximum size of array temps[].

•tempValue of  type double takes value at a given index of our temps[] array.

•the for loop inside main() is used to get tempValue from the user and store those values in our array temps[].

•after that printArray() function is called. to pass an array to a function it requires to perimeters 1) name of the array which is temps in our case. 2) maximum number of the index which is  k.

•note the syntax of void average(double arr[], int n). Since we are passing an array to the function so its formal parameters would be arr[] and an int n which specifies the maximum size of our array temps[].

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