Find the median of these numbers: 4, 2, 7, 4, 3
Answers
Total number of observation, n = 12(even)
The given observations can be arranged in ascending orders as 2, 7, 9, 13, 20, 22, 24, 25, 27, 28, 35, 40.
When number of observation, n is even, then
Median = Mean of and observations.
∴ Median = Mean of and observations
⇒ Median = Mean of 6th and 7th observations
6th observation = 22 and 7th observation = 24
∴ Median = Mean of 22 and 24
Thus, the median of the given observations is 23.
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How to Calculate the Median
⏺️ Arrange your numbers in numerical order.
⏺️ Count how many numbers you have.
⏺️ If you have an odd number, divide by 2 and round up to get the position of the median number.
⏺️ If you have an even number, divide by 2.
➯ 2,3,4,4,7
There are 5 numbers.
So, it is odd.
5/2 = 2.5 = 3 is the median.