Question: what is the 1st 2nd and 3rd quartile?
Answer: The first quartile (Q1) is defined as the middle number between the smallest number and the median of the data set. ... The second quartile (Q2) is the median of a data set and 50% of the data lies below this point. The third quartile (Q3) is the middle value between the median and the highest value of the data set.