aniz Posted February 27, 2021 Report Share Posted February 27, 2021 I am doing my IA on the effect of different washing methods on the number of bacteria colonies on the surface of a fruit. my method is composed of me visually counting the number of bacteria colonies. Therefore there is no direct uncertainty on my results other than human error. I don't know what to do is it bad that i don't have uncertainty calculations? will i lose a lot of marks? someone please help. Reply Link to post Share on other sites More sharing options...
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