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Would someone be kind enough to give me and explain the linear interpolation formula used for s1 edexcel board?

Thanks :biggrin:

use linear interpolation for group frequency table to find quartiles ( Q1 , Q2 , Q3 )

DO u have any examples ? u can bring to here and we can solve it together ===> that'll be more understanding about it :biggrin:
Reply 2
milan5baros
Would someone be kind enough to give me and explain the linear interpolation formula used for s1 edexcel board?

Thanks :biggrin:


Hey im doing S1 Edexcel(im a2 retake). (IF youve got the S1 Heniemann modular book check page 34) Ive used the formula as below:
SOmeting/something x Class Width + Lowest COmmon Boundary, its in that book mentioned, im just gonna go and check it.
Reply 3
prettyboy_bn
use linear interpolation for group frequency table to find quartiles ( Q1 , Q2 , Q3 )

DO u have any examples ? u can bring to here and we can solve it together ===> that'll be more understanding about it :biggrin:



I havent really got any examples with me at the minute, could you quote the formula?

:smile:
Alright , below are some pages all about quartiles , i think its be Ok for u :wink:
the new s1 book has a different method without using the formula, 3 dots on a line, fairly easier to learn.

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