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The median of numbers, 12, 22, 32,__(2n + 1)2 is given by______?
Correct answer: C. (n + 1)2
- A. (n2 + 1)
- B. (2n + 1)2
- C. (n + 1)2
- D. (N - 1)2
Explanation
For 2n + 1 ordered observations, the middle observation is in position (2n + 2)/2 = n + 1. If the sequence is 1², 2², 3², …, (2n + 1)², the median is therefore (n + 1)².
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