Multiple choice questions III — task. Mathematics State Board, Class 9.

PDF chapter test TRY NOW

1. The mean of

$5$ ,

$9$ ,

$x$ ,

$17$ and

$21$ is

$13$ , then find the value of

$x$ .

2. The mean of the square of first

$11$ natural numbers is .

3. The mean of a set of numbers is

$\overline X$ . If each number is multiplied by

$z$ , the mean is

$z \overline X$
$\overline X - z$
$\overline X$
$\overline X + z$

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content