Tamil Nadu Board Solutions for Chapter: Statistics, Exercise 11: Exercise

Arithmetic mean of $15$ observations was calculated as $85$. In doing so an observation was wrongly taken as $73$ for $28$. What would be correct mean?

Find the median of $25, 16, 15, 10, 8, 30$.

Find the mode of $2, 5, 5,1, 3, 2, 2, 1, 3, 5, 3$.

The marks scored by the students in social test out of $20$ marks are as follows:

$12, 10, 8, 18, 14, 16$. Find the mean and median.

The number of goals scored by a football team is given below.

Find the mode and median for the data of $2, 3, 2, 4, 6, 1, 3, 2, 4, 1, 6$.

Find the mean and mode of $6, 11, 13, 12, 4, 2$.

If the mean of the following numbers is $38$ , find the value of $x$.

$48, x, 37,38,36,27,35,34,38,49,33$.