AP EAMCET · Maths · Statistics
The standard deviation of the numbers 22, \(26,28,20,24,30\) is
- A 2
- B 2.4
- C 3.24
- D 3.42
Answer & Solution
Correct Answer
(D) 3.42
Step-by-step Solution
Detailed explanation
Given numbers 22, 26, 28, 20, 24, 30 \[ \bar{x}=\frac{22+26+28+20+24+30}{6}=\frac{150}{6}=25 \] Now, \(\left(x_i-\bar{x}\right)^2\) is \(9,1,9,25,1,25\)…
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