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S1-Linear Interpolation

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

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

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    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
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    (Original post by milan5baros)
    Would someone be kind enough to give me and explain the linear interpolation formula used for s1 edexcel board?

    Thanks
    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.
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    (Original post by 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

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

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    Alright , below are some pages all about quartiles , i think its be Ok for u
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    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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Updated: May 13, 2009
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