Question

If the mean of the data 2, x+1, x, x-2 is 4 then x=? ​

Answer 1

Answer:

x = 5

Step-by-step explanation:

Given :

• mean = 4

• observations=  2, x+1, x, x-2

To find : the value of x

Formula used : mean = sum of observation/number of observation

Solution:

mean = sum of observation/number of observation

4 = (2+ x+1+ x+x-2)/4

16 = 3x + 1

16-1 = 3x

15 = 3x

15/3 = x

5 = x

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