If an odd-numbered data set has $n$ observations in ascending order, the median is the:
A$\left(\dfrac{n}{2}\right)^{\text{th}}$ observation
B$\left(\dfrac{n+1}{2}\right)^{\text{th}}$ observation
Cmode of the data
Dmean of first and last observations
Answer & Solution
Correct answer: B. $\left(\dfrac{n+1}{2}\right)^{\text{th}}$ observation
For odd $n$, median is the middle = $\left(\dfrac{n+1}{2}\right)$th observation.
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