how to find the median
How do I calculate the median?
For a small data set, you first count the number of data points (n) and arrange the data points in increasing order.
If the number of data points is uneven, you add 1 to the number of points and divide the results by 2 to get the rank of the data point whose value is the median.2 sept. 2021What is the basic formula of median?
Determine if the number of values, n, is even.
Locate the two numbers in the middle of the data set.
Find the average of the two middle numbers by adding them together and dividing the sum by two.
The result of this average is the median.It is calculated using the formula:
It is calculated using the formula:
1Median = (n + 1)/2th observation {when n is odd}2Median = Average of (n/2)th and [(n/2) + 1]th observations {when n is even}
What is the median of 1 2 3 4 10?
Since the numbers are arranged in the ascending order, the middle value is 3 by virtue of its position.
There are two values below 3 and two values above 3.
Hence 3 is the median value.
- Arrange the data points from smallest to largest.
- If the number of data points is odd, the median is the middle data point in the list.
- If the number of data points is even, the median is the average of the two middle data points in the list.
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