JEE Math Practice Question
Let the mean of 6 observations $$1,2,4,5, \mathrm{x}$$ and $$\mathrm{y}$$ be 5 and their variance be 10 . Then their mean deviation about the mean is equal to :
- A.$$\frac{10}{3}$$
- B.$$\frac{8}{3}$$
- C.$$\frac{7}{3}$$
- D.3
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