What does the first quartile mean?
First quartile meaning:
The first quartile is the median of the lower half of the data set. It is denoted by .
of the data smaller and of the data is larger than the first quartile.
Example:
The lower half of the data set is and the median of the lower half is .
Hence, the first quartile of the data set is .
Hence,the meaning of first quartile is explained.