Five mark example problem IX — task. Mathematics State Board, Class 10.

PDF chapter test TRY NOW

The marks scored by the students in a slip test are given below. Find the standard deviation of their marks.

$x$	$4$	$6$	$8$	$10$	$12$
$f$	$7$	$3$	$5$	$9$	$5$

Answer:

The standard deviation

$=$

Did you find an error?

25. Five mark example problem IX