Question

If the mean of 3,1,5,x and 9 is 4 then the value of x is

Answer 1

Answer:

please make me as brainlist

Step-by-step explanation:

The correct option is B 5

6

=

3

+

4

+

x

+

7

+

10

5

⇒

30

=

24

+

x

⇒

x

=

6

Therefore, the given statement is false.

Answer 2

Answer:

x = 2

Step-by-step explanation:

3,1,5,x and 9 is given terms

mean = 4

$mean \: = \frac{sum \: of \: all \: terms}{number \: of \: terms} \\ 4 = \frac{3 + 1 + 5 + x + 9}{5} \\ 4 \times 5 = 18 + x \\ 20 = 18 +x \\ 20 - 18 = x \\ x = 2$