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mathematical formula for grouped data. To estimate the Mode use. Math Class 10 math India Statistics Mean median mode of grouped data.
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S 2 f m x 2 n. Your formula can be written differently if we take d1 F1 - F0 difference between modal class and previous class d2 F1 - F2 difference between modal class and next class Then d1 d2 F1 - F0 F1 - F2 2F1 - F0 - F1 so the formula is Z L1 d1d1 d2 i. 32 -62105 x 5.
Lets practice finding mean of grouped data.
L is the lower class boundary of the modal group. G is the frequency of the median group. Where x i Middle value of the i th class. Step Deviation Method.
