Question

if the mean of 20,24,36,26,34 and K is 30 then find K

Answer 1

20+24+36+26+34+k/6=30

140+k/6=30 k=40

Answer 2

Answer:

The value of K is 40

Explanation:

We are given the mean of 20,24,36,26,34 and K is 30

As we know the mean is sum of all the data over number of data.

Mean = 30

Sum of data = 20 + 24 + 36 + 26 + 34 + K = 140+K

Number of data = 6

$\text{Mean }=\dfrac{\text{Sum of Data}}{\text{Number of data}}$

$30=\frac{140+K}{6}$

$140+K=30\times 6$

$K=180-140\Rightarrow 40$

Thus, The value of K is 40