if the mean of 5 observation : x , x+4 , x+8 , x+12 , x+16 is 13 find - Maths - Statistics

Question

if the mean of 5 observation : x , x+4 , x+8 , x+12 , x+16 is 13
find the observation

Varun.Rawat · Accepted Answer

The given observations are :x,x+4,x+8,x+12 and x+16
Now, sum of observations = x+x+4+x+8+x+12+x+16 = 5x + 40Now, number of observations = 5mean = 13⇒sum of observationsnumber of observations = 13⇒5x+405 = 13⇒5x+85 = 13⇒x + 8 = 13⇒x = 5Now, the observations are :5, 5 + 4, 5 + 8, 5 + 12 and 5 + 16that is 5, 9, 13, 17 and 21

if the mean of 5 observation : x , x+4 , x+8 , x+12 , x+16 is 13. find the observation .