Q5 of 96 Page 157

The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its

Since, the intersection point of less than ogive and more than ogive gives the median on the abscissa.

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3

If xi’s are the mid - points of the class intervals of grouped data, fi are the corresponding frequencies and is the mean, then is equal to

 4

In the formula for finding the mean of grouped frequency distribution is equal to

 6

For the following distribution,


the sum of lower limits of the median class and modal class is

 7

Consider the following frequency distribution


The upper limit of the median class is