Statistics Test...

Given the following distribution table:

Class	$$0-5$$	$$5-10$$	$$10-15$$	$$15-20$$	$$20-25$$
Frequency	$$10$$	$$15$$	$$12$$	$$20$$	$$9$$

The sum of lower limits of the Median class and the Modal class is:

If the median of the distribution is $$28.5$$, find thevalues of $$x_1$$ and $$x_2$$

Class interval	Frequency
0-10	5
10-20	$$x_1$$
20-30	20
30-40	15
40-50	$$x_2$$
50-60	5
	Total $$=$$ 60

If $$x_i$$'s are the mid points of the class intervals of grouped data, $$f_1$$'s are the corresponding frequencies and $$\bar x$$ is the mean, then $$\sum (f_i x_i - \bar x)$$ is equal to

If the sum of the mode and mean of the certain frequency distribution in $$129$$ and the median of the observations is $$63$$, mode and mean are respectively

Family size	$$1-3$$	$$3-5$$	$$5-7$$	$$7-9$$	$$9-11$$
No. of families	$$14$$	$$16$$	$$4$$	$$4$$	$$2$$

A survey conducted on $$40$$ households in a locality by a group of students resulted in the following frequency table for the number of family members in a household -
Find the mode of this data

If in a moderately skewed distribution the values of mode and mean are $$6\lambda$$ and $$9\lambda$$ respectively, then the value of the median is

In a distribution the values of mean and median are $$5$$ and $$6$$ respectively. The value of mode in such a situation is approximately equal to

If the difference between the mode and median is $$2$$, then the difference between the median and mean (in the given order) is?

The median class in the following frequency distribution is:

Class Interval:	0-10	10-20	20-30	30-40	40-50
Frequency	12	13	25	20	10

The mode of the following distribution is

Class Interval:	1-5	6-10	11-15	16-20	21-25
Frequency:	4	7	10	8	6