Statistics Test...

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 grouped data, formula for arithmetic mean by direct method =

Find the median from the following data.

Calculate Median salary from the following frequency distribution 

For grouped data, Arithmetic mean by Assumed Mean Method =

Arithmetic mean for grouped data can be calculated by _________.

The choices of the fruits of 42 students in a class are as follows:
A, O, B, M, A, G, B, G, A, G, B, M. A, O, M, A, B, G, M, B, A, O, M, O, G, B, O, M, G, A, A, B, M, O, M, G, B, A, M, O, M, O, where A, B, G, M and O stands for Apple, Banana, Grapes, Mango and Orange respectively.
Which two fruits are liked by an equal number of students?

Ages of players in a cricket team are $$25, 26, 25, 27, 28, 30, 31, 27, 33, 27, 29$$.
(i) Find the mean and mode of the data. (ii) Find the minimum number of players to be added to the above team so that mode of the data changes and what must be their ages.

The following is the distribution of weekly wages of workers in a factory. Calculate the arithmetic mean of the distribution.

If the mode of five observations, in order, $$0, 2, 3, m, 5$$ is $$3$$ then $$m =$$ _______.