What does the following code do$?$ 'arr' is an array.

arr$[$arr$>$mean$\_$value$]=$ arr$[$arr$>$mean$\_$value$]"2$

Create a new array that copies the original array and doubles the values

Select the numbers that are greater than the mean from the array, double them and assign to a new array

Change the array by doubling the numbers that are greater than the mean,

Make two arrays where the numbers are greater than the mean