AP EAMCET · Maths · Statistics
The variance of the following distribution is
- A 2
- B 4
- C 6
- D 8
Answer & Solution
Correct Answer
(B) 4
Step-by-step Solution
Detailed explanation
\(\because \quad\) Variance \(=\frac{\sum f \cdot x^2}{\sum f}-\left(\frac{\sum f \cdot x}{\sum f}\right)^2=20-16=4\)
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