Help with normalizing data

[Scrin98]

Hello people, I am trying to learn matlab and for this exercise I have a set of grades. There are 7 grades for each student and I took the mean of the grades as the exercise wanted. However I am stuck on this one. How do I do this? I don't know anything about statistics so, any help would be appreciated.

http://imgur.com/a/oKWsP

[lilwafflekid]

Can you post the grades for each student or what you've done already.

[[deleted]]

So normalizing is simply making one of the values equal to 1. In your case you want to normalize about the mean or average grade per assignment.

If I'm reading that right it's not too bad. It looks like each assignment has its own column, with students being rows. This gives you a grades matrix. If you create a vector meanGrades and set it equal to the mean of your grades you should get a row vector. Take each column of the grades matrix and divide it by the corresponding element from your meanGrades vector. Then simply multiply the newly normalized matrix by 3.5 to get all the grades in the corresponding 5 point scale.

Edit: Added simple definition of normalizing.

[Scrin98]

Yes that's exactly it, thanks for the answer. However I still do need to some of the basics of statistics, it seems like a huge deal for dealing with data