Question

If the arithmetic mean of 4,8,9,11,p and 15 is 9, find the value of p​

Answer 1

Step-by-step explanation:

mean =sumof observation/total no.......

so... 4+8+9+11+15 +p / 5 = 9

37+ p /6 = 9

37+p = 54

p = 17

Answer 2

(4+8+9+11+p+15)/6=9

6*9=54

So

47+p=54

So, p =7