How to find the average in a row?

I have a row of values in:

tempv = [50, 60, 65, 30, 40, 66, 30, 55, 72, 72, 75, 50, 60, 65, 30, 40, ... 
            66, 30, 55, 63, 72, 75, 50, 60, 65, 30, 40, 66, 30, 55, 53];

I have to find the sum using a for loop. I tried the below but it is adding up the number of the slot, not the value.

x=length(tempv);
sum=0;
for i = 1 : length(tempv)
sum=sum+i;
end
y=sum/x;
fprintf('The average temperature in Fahrenheit was:  %i\n', y)
fprintf('sum: %i\n', sum)

Command Window:

The average temperature in Fahrenheit was:  16
sum: 496

How do I find the average of these values in a for loop? I would assume there is some way to add each value one by one and store that in a variable. Then I would just have to divide that variable over the length(tempv). But I am not sure how to ge the sum of those values in a for loop

[dpb]

Start with <Getting-started-with-matlab>, particularly the sections <matrices-and-arrays> and then specifically for your immediate problem <Array-indexing>

Answer 1

[dpb]

What's wrong with

mn=mean(tempv);  % ???

[Alexander Nicholas]

This works. Thanks a lot. Very new to MATLAB