What is median class and modal class?
Hereof, what is median class?
The median is the middle term in the arranged data set. In the case of an even number of terms, the median is the average of the two middle terms. The median class interval is the corresponding class where the median value falls.
Subsequently, question is, how do you find the median of a class interval? Summary
- For grouped data, we cannot find the exact Mean, Median and Mode, we can only give estimates.
- To estimate the Mean use the midpoints of the class intervals: Estimated Mean = Sum of (Midpoint × Frequency)Sum of Freqency.
- To estimate the Median use: Estimated Median = L + (n/2) − BG × w.
- To estimate the Mode use:
Also to know is, what if there are two modal classes?
If there are more than one class intervals which have the same frequency (equally qualifying to be the mode class) then both of the classes will be the mode class. this is called bimodal.
How do you determine modal size?
To find the mode, or modal value, it is best to put the numbers in order. Then count how many of each number. A number that appears most often is the mode.