Question

Pazos If mean O - 15 Efx= 342+P and N=20+p, find 7 , the value of N. ​

Answer 1

Answer:

Mean=€fx/N

or, 7.5=(342+p)/(20+p)

or, 7.5(20+p)=342+p

or, 150+7.5p=342+p

or, 7.5p-p=342-150

or, 6.5p=192

or, p=192/6.5

•°•p=29.54

Now,

N=20+p

N=20+29.54

•°•N=49.54