Tip:A–D to answerE for explanationV for videoS to reveal answer
The mean deviation about mean of x−2,x,x+2 is:
- A.
1
- B.
4/3
(Correct Answer) - C.
2
- D.
3
Explanation
Solution:
-
Sabse pehle Mean (xˉ) nikalenge:
xˉ=3(x−2)+x+(x+2)=33x=x
-
Ab Mean se deviations nikalenge:
-
Mean Deviation (M.D.):
Answer: (b) 4/3
Explanation
Solution:
-
Sabse pehle Mean (xˉ) nikalenge:
xˉ=3(x−2)+x+(x+2)=33x=x
-
Ab Mean se deviations nikalenge:
-
Mean Deviation (M.D.):
Answer: (b) 4/3