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Maths, Addmaths and Statistics: Post your doubts here!

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syed1995 mein ne jo kaha tha na ke negative factor is reflection of fig whch wud have been made if same factor wud be positive.
ye shear mein apply nhe hota sirf stretch mein hota hai..
 
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yar can anyone please tell me how to complete the frequency polygon? i know how to connect the points, can u please tell me that will we end it perpendicularly at the last point or at the end of the range at x axis? i am talking about Q24 (b) here:
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s08_qp_1.pdf


here i try to explain u in simple words !! on x - axis labell the time for 1 unit 1 min uptil 12...!! find the mid-point of intervals like for 4 < t< 6 it is 5 !! plot ( 5 , 21) as given in the table !! plot the other points the same way !! after plotting start joining them , begin from 4 and end at 12 !!

hope u understand it !!

:) do correct me if I am wrong !
 
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