Statistics Test...

Find median of the data, using empirical relation when it is given that mode $$=12.4$$ and mean $$=10.5$$.

If mean : median of a certain data is $$2 : 3$$, what is the ratio of its mode and mean?

The demand for different shirt sizes is given in the table.

If the ratio of mode and mean of a certain data is $$3 : 2$$, what is the ratio of its median and mean?

One of the methods to find out mode is ______.

On the occasion of New year's day a sweet stall prepared sweet packets. Number of sweet packets and cost of each packet are given as follows.

For a certain frequency distribution, the value of Mean is $$101$$ and Median is $$100$$. Find the value of Mode.

For the next three (03) items that follow : 
The number of telephone calls received in 245 successive one minute intervals at an exchange is given below in the following frequency distribution. 

For the next three (03) items that follow : 
The number of telephone calls received in 245 successive one minute intervals at an exchange is given below in the following frequency distribution.