TS EAMCET · Maths · Statistics
The mean deviation about the mean of the following data is nearly 
- A 3.45
- B 3.25
- C 2.75
- D 2.95
Answer & Solution
Correct Answer
(D) 2.95
Step-by-step Solution
Detailed explanation
Given data So, mean \((\bar{x})=\frac{336}{42}=8\) \(\therefore\) Mean deviation \(=\frac{\Sigma f|x-\bar{x}|}{N}=\frac{124}{42}=2.95\)
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