Please use MATLAB and proper description and comments in script

The file testscores.d in the scores and determine the high, low and average (Ave) of the scores. Determine also the standard deviation (SD) of the scores. Use MATLAB functions to do this directly. For each student, determine the grade assuming that the following: 4. at has on each line a student ID# and a test score. write a program to read Grade Range Score >= Ave + 1.5*SD Ave+1.5*SD> ScoreAve0.5*SD B Ave + 0.5 *SD > Score > =Ave-0.5 *SD | C Ave-0.5*SD> Score>Ave 1.5* SD D Ave - 1.5*SD > Score Print out in a new file the student ID and the correct letter grade. How many A's, B's, C's, D's and F's were given? The program should provide a summary of the scores: Low, High, Average, # of each letter grade to the command window. Turn in the output to the command window. Submit your .m files on Blackboard