I’m very new to programming and I’m having troubles calculating variance.
First of all, I have file that is full of data. The exercise is: there are shops and each shop sells same brands of apples. We are looking at the sourness of apples (measures on 0-5 scale).
So the my problem is, that I need to calculate which brand has the highest variance of sourness.
I have scanned csv into arrays, so now I need to take each array and calculate its variance.
I think that I need to create a loop length of array…but I don’t know how to do that:(((
I have tried to start but I get frustrated because there is a LOT of data.
I really have no idea on what to do next.
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