Question

if the sum of 4 observation p²+3p and their mean Is 8 find the positive value of p​

Answer 1

Step-by-step explanation:

ANSWER

Given the sum of four observations is p

2

+31p. of the mean of these observations is 8.

Sum of four observations is p

2

+31p

∴ mean = \dfrac{Sum \, of \ observations}{No \ of \ observations}$$

8=

4

p

2

+31p

32=p

2

+31p

p

2

+31p−32=0

Here spiting the 31p as 32p−p

p

2

+32p−p−32=0

p(p+32)−1(p+32)=0

(p+32)(p−1)=0

p+32=0 & p−1=0

p=−32 & p=1

we are given p be any positive integer then value of p is 1.