The mean of the following data is 8.
Question:
The mean of the following data is 8.
The value of p is
(a) 23
(b) 24
(c) 25
(d) 21
Solution:
(c) 25
Now,
Mean $=\frac{303+9 p}{41+p}$
Given :
Mean $=8$
$\therefore \frac{303+9 p}{41+p}=8$
$\Rightarrow 303+9 p=328+8 p$
$\Rightarrow p=25$