Use the combined mean formula which should be in textbook
(23 x 153)+(17 x 165) then divide by 40
(23 x 153)+(17 x 165) then divide by 40
(edited 6 years ago)
Original post by happiness12
Use the combined mean formula which should be in textbook
(23 x 153)+(17 x 165) then divide by 40
(23 x 153)+(17 x 165) then divide by 40
Correct!... I think. At least that's what I'd do.
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