How to I get the average of the inputs from this?

My code is as follows:

A=0;B=0;C=0;D=0;F=0;

x=input('Enter an exam grade from 0 to 100: '); %Prompts the user to input a value to begin the loop

while (x>=0) && (x<=100)

    if x<60

        F=F+1; %Adds to the total amount of grades in the category

    elseif x<70

        D=D+1;

    elseif x<80

        C=C+1;

    elseif x<90

        B=B+1;

    elseif x<=100

        A=A+1;

    end %ends conditional statements to move to next input

    x=input('Enter an exam grade from 0 to 100: '); %input runs within the loop until a value less than 0 or greater than 100 is entered
end

fprintf('There are a total of %.0f A''s scored on the exam.\n',A)

fprintf('There are a total of %.0f B''s scored on the exam.\n',B)

fprintf('There are a total of %.0f C''s scored on the exam.\n',C)

fprintf('There are a total of %.0f D''s scored on the exam.\n',D)

fprintf('There are a total of %.0f F''s scored on the exam.\n',F)

Answer 1

[Image Analyst]

To get the mean score within each grade letter, you will have to sum them up

    if x<60
        F=F+1; %Adds to the total amount of grades in the category
        FSum = FSum + x;

and so on for the other letters. Be sure to set FSum = 0 before the loop starts. Then after the look, just get the means

AMean = ASum / A;
BMean = BSum / B;
CMean = CSum / C;
DMean = DSum / D;
FMean = FSum / F;

[Robert Cuthbert]

Great answer! Thank you very much!