Find out the mode of the following frequency distribution by the graphical method :

Expenses (In Rs)	$0-10$	$10-20$	$20-30$	$30-40$	$40-50$
No . of families	$14$	$23$	$27$	$21$	$15$

The following is the price of Cabbage over 12 months. What is the median price?

If for some $x\in R$, the frequency distribution of the marks obtained by $20$ students in a test is:

Then the mean of the marks is :

The mean and median of  $7, 5, 5, 2, 7, 6, 5, 3, 7, 6$is-

1. $5.3$ and $5$

2. $5$ and $5.5$

3. $5$ and $6$

4. $5.3$ and $5.5$

What is the median of the following list of numbers?

$5, 3, 6, 9, 11, 19$ and $1$

The mean of a data set comprising of $\mathrm{16}$ observations is $\mathrm{16}$. If one of the observation value $\mathrm{16}$ is deleted and three new observations valued $3,\; 4$ and $\mathrm{5}$ are added to the data, then the mean of the resultant data is