A-Level Edexcel Statistics S1 January 2008 Q3 (Histograms) : ExamSolutions

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Комментарии
Автор

No not necessarily. Just be aware of it when you compare it to other frequencies and areas. Check to see if frequency in other bars equals the area or has it been doubled say or modified in any way by a scale factor other than 1.

ExamSolutions_Maths
Автор

Normally in most questions area = frequency. In this one it was area = k x frequency where k did not equal 1.

ExamSolutions_Maths
Автор

It's not very difficult in my opinion but great explanation as always thanks for your time and good

nahroub
Автор

Thanks, but this would've been a lot easier to if you had showed us the question as well.

karky
Автор

I got the answer just by doing the class width x freq. dens. of the area we needed...

Can you explain why you needed to do so much more work when the answer is the same just doing what I did?

StarTrek
Автор

Strange... I solved it just by doing 90.5-78.5 x 1 ... lol without finding the total area.

Scarxgt