ጥያቄ 1
የ12ኛ ክፍል ሒሳብ መግቢያ ፈተና፣ 2018 ዓ.ም. (2026)
Consider the data: 11, 13, 15, 17, 19, 21. Which one of the following is the mean deviation from the mean?
- A.4
- B.3.5
- C.4.5
- D.3
መልሱን እና ማብራሪያውን ይመልከቱ
መልስ፦ D 3
ለምን
The mean of the data is (11+13+15+17+19+21)/6 = 16. The absolute deviations from the mean are 5, 3, 1, 1, 3, and 5, which sum to 18; dividing this sum by 6 yields a mean deviation of 3.


