Project ForgeEngineering Mathematics
Probability & Statistics
GATE 2013
Easy
The number of emails received on six consecutive days is 11, 9, 18, 18, 4 and 15, respectively. What are the median and the mode for these data?
- A18 and 11, respectively
- 13 and 18, respectively
- C13 and 12.5, respectively
- D12.5 and 18, respectively
Explanation
Sorted data: 4, 9, 11, 15, 18, 18. Median (average of the 3rd and 4th values for n=6) = (11+15)/2 = 13. Mode (most frequent value) = 18 (appears twice).
Source: GATE CH 2013 (2013)
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