Recent content by whitefeather

Hi, I am trying to think of a really interesting physics topic to do a research & report project (basically an essay) on for my a level physics course work. I have got to come up with a title in the form of a question to write approx 2000 words on. I am finding it really difficult to think of...

I missed the lesson on this and i can't figure out how to do this question with the data given. Homework Statement A class of 20 students takes a test. The score, x , for each student was recorded by the teacher. The results of summarised by: ∑(x-10) = 208 and ∑(x-10)² = 2716 i) calculate...