SHOWW ALL MATLAB CODE (SCREENSHOT)

Write a function called classAverage that takes in an array of numbers and, after normalizing the grades in such a way that the highest corresponds to 100, returns the letter grade of the class average. This curve is the same method used to generate normTests in Chapter Problem 2. The grade ranges are as follows:

average>= 90 => A

80<= average< 90 => B

70<= average< 80 => C

60<= average< 70 => D

average< 60 => F

For example: classAverage( [70 87 95 80 80 78 85 90 66 89 89 100] ) should return B Test your program for the following two cases:

classAverage( [50 90 61 82 75 92 81 76 87 41 31 98] )

classAverage( [10 10 11 32 53 12 34 74 31 30 26 22] )