COMEDK · Maths · 29. Statistics
Calculate the mean deviation about the mean of the set of first ten even natural numbers.
- A 5.5
- B 2.5
- C 5
- D 0
Answer & Solution
Correct Answer
(C) 5
Step-by-step Solution
Detailed explanation
The first ten even natural numbers are \(2, 4, 6, 8, 10, 12, 14, 16, 18, 20\). The mean \(\bar{x}\) is given by \(\bar{x} = \dfrac{1}{10} \sum_{i=1}^{10} x_i = \dfrac{2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20}{10} = \dfrac{110}{10} = 11\). The mean deviation about the mean is…
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