uhmm well disregard this...
I got my answer
70% is definitely too high. You approach is flawed. If you describe the method used in more detail, someone might be able to point out where the error is.
Allright I ll describe it to you as soon as I hand my write up it, coz i need to hand it in in a few hours and it doesnt matter what grade i get coz i m sure my other write ups will make up for the loss. This experiment was a failure anyway.
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