Lesson: Quartiles of a Data Set Mathematics • 9th Grade

Students will be able to

• calculate each of the quartiles and the maximum and minimum values of a data set given in many forms such as a dot plot or table and understand how they measure the values that split up the data,
• understand that when the size of the data set is even, the median is the second quartile of the data set,
• understand approximately how much of the data will lie above or below a quartile or between two quartiles,
• explain why the quartiles do not split the data set exactly into quarters,
• interpret the five-number summary of a data set representing a real-world scenario.