Question

If the mean of 5 observations X,X+4,X+8,X+12 and X+16 is 13, find the value of x. ​

Answer 1

Answer:

X = 5

Step-by-step explanation:

mean = (X + X+4 + X+8 + X+12 + X+16) / 5

13 = (5X + 40) / 5

65 = 5X + 40

5X = 25

X = 5

Answer 2

Answer:

value of x is 5

Step-by-step explanation:

mean=sum of observation

total no. of observation

13 = x+x+4+x+8+x+12+x+16

5

13=5x+40

5

13×5=5x+40

65-40=5x

25=5x

25=x

5

5=x

x=5

Hope it will help you