AP EAMCET · Maths · Statistics
The mean deviation from the mean of the set of observations, is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
Using the given data, Mean of the set of observations isx =∑i=1nxin Hence, x=-1+0+43=1 Now using the formula for mean deviation, MD=∑i=1n|xi-x|n ⇒ MD=-1-1+0-1+4-13 ⇒ MD=2
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