Written in VB please.

Here are the grades.

Looks like this

Please help, thank you.

7.1.48 & 54 7-1a. Homework Evaluate Grades: The file Final.txt contains student grades on a final exam. Write a program that reads the Final.txt file into a string array, converts into an integer array, calculates the number of grades and the average grade, and then uses loop(s) to calculate and display the percentage of grades that are above average, the standard deviation of the grades (see formula below), and a frequency distribution showing grades in the following classes: 90-100, 80-89, 70-79, 60-69, and below 60. x1 + x2 + x3 + ... + xn mean (denote the mean by m) n (x1 m) + (x2 - m)2 + (x3 - m)? + +(x, m)' standard deviation = n 78 67 56 99 80 83 82 91 94 95 77 88 85 92 91 79 88 82 81 86 94 93 92 45 . Form1 Label1 Frequency Distribution: Evaluate Grades Number of Grades: 90-100 Average grade: 80-89: Percentage above average: 70-79: Standard Deviation: 60-69 Below 60