Measures of Cen...

The weights of students of a certain class are given below.
$$39, 42, 47, 38, 42, 40, 42, 38, 43, 42, 38, 44, 46, 39, 42, 40, 43, 42, 41$$
Find the mode.

Find the mean and median of the data:
$$35, 48, 92, 76, 64, 52, 51, 63$$ and $$71$$.
If $$51$$ is replaced by $$66$$, what will be the new median?

The weights (in $$kg$$) of $$10$$ children are:
$$40,52,34,47,31,35,48,41,44,38$$. Find the median weight

The median of the following data $$46$$, $$64$$, $$87$$, $$41$$, $$58$$, $$77$$, $$35$$, $$90$$, $$55$$, $$33$$, $$92$$ is 

The following observations have been arranged in ascending order. If median of these observations is $$58$$, find the value of $$x$$.
$$24, 27, 43, 48, x - 1, x + 3, 68, 73, 80, 90$$

The mean of first six multiples of $$4$$ is

While computing mean of grouped data, we assume that the frequencies are:

Find the mean of the following data, by using the assumed mean method.

To find mean, we use the formula