Question

The mean of 1, 7, 5, 3, 4 and 4 is m. the numbers 3, 2, 4, 2, 3, 3, and p have mean m – 1 and median q. find p

and q​

Answer 1

Answer:

(i) Mean of 1,7,5,3,4,4 is m.

Here n=6

Mean, m=(1+7+5+3+4+4)/6

m=24/6

m=4

Given the numbers 3,2,4,2,3,3,p have mean m−1.

So m−1=(3+2+4+2+3+3+p)/7

4−1=(17+p)/7

3=(17+p)/7

3×7=17+p

21=17+p

p=21−17

p=4

Hence the value of p is 4.