Question

Subana is writing a program which will calculate the mean average of a set of numbers by adding the numbers and dividing the result by the amount of numbers. What variable will she use?

Answer 1

Data Type: Double (decimal)

Variable Name: avg

Step-by-step explanation:

An average of numbers will typically give you a decimal answer. Therefore, you should use the Double data type.

Answer 2

double mean

double sum

double number

int count

Step-by-step explanation:

There are many options to code a program for mean calcultation. This one is one of the simplest. First of all, get the numbers and increase the value of count by 1 each time new number is added. Then add the incoming numbers one by one performing the summation of all the input numbers on the variable sum; the final step is the calcultation of the mean by diving the variable sum by the variable count. With those variables ready, then Subana can make the code work properly.