# Mean of Array After Removing Some Elements

In this lab, you will implement a function to calculate the *mean of the remaining integers of an array after removing the smallest 5% and the largest 5% of the elements*. Your solution should correctly handle arrays of varying sizes and values, as long as they follow the constraints provided.

The function must return the mean, and answers within a `10-5`

range of the **actual answer** will be accepted. Keep in mind that you should use ESM import/export everywhere.

To better understand the problem, take a look at the following examples:

**Example 1:**

**Input:** arr = [1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3]
**Output:** 2.00000
**Explanation:** After erasing the minimum and the maximum values of this array, all elements are equal to 2, so the mean is 2.

**Example 2:**

**Input:** arr = [6,2,7,5,1,2,0,3,10,2,5,0,5,5,0,8,7,6,8,0]
**Output:** 4.00000

**Example 3:**

**Input:** arr = [6,0,7,0,7,5,7,8,3,4,0,7,8,1,6,8,1,1,2,4,8,1,9,5,4,3,8,5,10,8,6,6,1,0,6,10,8,2,3,4]
**Output:** 4.77778

Make sure your function follows these constraints:

`20 <= arr.length <= 1000`

`arr.length`

**is a multiple**of`20`

.`0 <= arr[i] <= 105`

## Challenges

- Implement the
`trimMean()`

function - Export the
`trimMean()`

function - Handle edge cases