The mid point formula is m= X1+X2/2 y1+y2/2
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It is the middle of the class. e.g. 0<l<10 - class midpoint is 5 because it is the middle of the class. e.g. 25<t<50 - class midpoint is 37.5 because it is the middle of the class Midpoint = MIDDLE
17.5
97
No, the midpoint is the result of adding the upper and lower limits in a class and dividing that by 2. Essentially the mid point is the average of the two limits.
An ogive is a cumulative relative frequency diagram. Interpolation is definiting the midpoint (50%) of this line