Course Content

C# Basics

## C# Basics

# Indexing Practice

Find the mean between the largest and the smallest element of the `numbers`

array.

Mean, also called average, represents the central number between two or more than two numbers. For-example the mean value between `1`

and `5`

is `3`

.

The formula for finding mean between two numbers sum of the two numbers divided by 2: `(num1 + num2) / 2`

Use **indexing** to access the smallest and the largest elements of the array.

main

`using System; namespace ConsoleApp { internal class Program { static void Main(string[] args) { int[] numbers = { 5, 9, 27, 17, 19, 21, 0, -7, 10 }; int sum = _________; int mean = _____; Console.WriteLine(mean); } } }`

- The
`sum`

variable should contain the sum of the two values. - Figure out the index of the smallest and the largest elements of the
`numbers`

array and access those elements via indexing (`numbers[index]`

), then store their sum in the`sum`

variable. - The
`mean`

will be the sum divided by 2.

main

`using System; namespace ConsoleApp { internal class Program { static void Main(string[] args) { int[] numbers = { 5, 9, 27, 17, 19, 21, 0, -7, 10 }; int sum = numbers[2] + numbers[7]; int mean = sum / 2; Console.WriteLine(mean); } } }`

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