Quartile Deviations – Sample & Analysis

This table represents the marks scored in math exam by students in XII-A, XII-B, and XII-C sections. The Q4, Q3, Q2, Q1, and Q0 are the quartiles. In lay terms, the quartiles, divide the range of marks into 4 sections.

Q0-Q1 is the first quartile
Q1-Q2 is the second quartile
Q2-Q3 is the third quartile
Q3-Q4 is the fourth quartile

For XII-A, there is not much variation between Q3 and Q4. This means, there is little variation among the top performers of the class. Q3 and Q2 show some variation.