Empirical formula involves : 

From the following data,the cumulative frequency for the income 1200 is _________________ .

Median is that measure of central tendency which divides the total frequency into _________________ equal parts.

From the following data,the cumulative frequency for the income 200 is _________________ .

What is the relation among mean, median and mode?

To find the mode of a grouped data, the size of the classes is ________________.

From the following data,the cumulative frequency for the income 600 is _________________ .

From the following data,the cumulative frequency for the income 1500 is _________________ .

On an ogive, a point whose Y- coordinate is half of the total observation has its X -coordinate equal to _____________ of the data.

From the following data,the class having cumulative frequency as 43 is __________________ .