Statistics Help
Hey guys, do you mind explaining 5 b)? Why is the frequency of the class for suppliers A and B, the modal frequency density multiplied by the class width? Thanks
(edited 10 months ago)
Thats pretty much what the defn of a frequency polygon is.
https://thirdspacelearning.com/gcse-maths/statistics/frequency-polygon/
The lines joining the points are not important.
https://thirdspacelearning.com/gcse-maths/statistics/frequency-polygon/
The lines joining the points are not important.
Original post by mqb2766
Thats pretty much what the defn of a frequency polygon is.
https://thirdspacelearning.com/gcse-maths/statistics/frequency-polygon/
The lines joining the points are not important.
https://thirdspacelearning.com/gcse-maths/statistics/frequency-polygon/
The lines joining the points are not important.
Right, thanks. I think I got confused by the fact that it was the frequency density on the y-axis but I understand now.
Original post by Nithu05
Right, thanks. I think I got confused by the fact that it was the frequency density on the y-axis but I understand now.
I thought you were asking about why multiply by the "centre" value, but it is a density so frequency per mm, so multiply by mm to get frequency.
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