Mean of Array After Removing Some Elements
The goal of this problem is to remove the smallest 5% and the largest 5% of elements from the array and then calculate the average of the remaining elements.
Here’s how we can approach this problem:
 First, we need to sort the array so that we can easily find the smallest and largest elements.
 Next, we calculate 5% of the array length to determine how many elements we need to remove from both ends of the sorted array. We use integer division (//) to make sure we get an integer result.
 We then slice the array to remove the smallest and largest elements. Python’s slicing feature makes this easy:
arr[a:b]
creates a new array from theath
to(b1)th
elements ofarr
.  Finally, we calculate and return the average of the remaining elements.
Here is the Python code:


This code first sorts the array, then removes the smallest and largest 5% of elements, and finally returns the average of the remaining elements. The average is calculated by dividing the sum of the elements by the number of elements.