By drawing an ogive, estimate the following frequency distribution:
|Weight(kg)||No.of boys||Cumlative Frequency|
Number of terms=55
∴ Median =` (55+1^("th"))/2` term = `28^("th")` term
Throgh mark of 28 on the y-axis, draw a line parallel to x-axis which meets the curve at A. from A, draw a perpendiculer to x-axis , which meets x- axis at B
The value of B is the median which is 18.4 kg .