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GATE CSE 2024 Session 1 Q3: Median of a sample of ten numbers

Question

Consider the following sample of numbers:

9,18,11,14,15,17,10,69,11,139, 18, 11, 14, 15, 17, 10, 69, 11, 13

The median of the sample is

Try it: multiple choice: exactly one correct option

Select one option
Wrong answer costs 1/3 mark in GATE.
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Answer: A (official GATE 2024 final answer key)

Concept used: Median of an even-sized sample: the mean of the two middle values after sorting.

First step: Sort the ten numbers and average the 5th and 6th values.

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Source: official GATE 2024 Session 1 CS question paper and final answer key, organised by IISc Bangalore. Question paper · Answer key