Find the mode of the following frequency distribution.

$x$	$4$	$5$	$6$	$7$	$8$
$f$	$6$	$7$	$10$	$8$	$3$

If $\text{mean} = (3 \text{median} - \text{mode}) k$,then the value of $k$ is

For a normal distribution,which of the following relations holds true?

In a given frequency distribution,the respective values of mean and median are $21$ and $22$. The value of mode is

If in a frequency distribution,the mean and median are $21$ and $22$ respectively,then its mode is approximately

Karl Pearson's coefficient of skewness of a distribution is $0.32$. Its standard deviation $(S.D.)$ is $6.5$ and the mean is $39.6$. The median of the distribution is: