Lesson: Grouped Frequency Tables: Estimating the Median Mathematics
In this lesson, we will learn how to estimate the median for data presented in a grouped frequency table using cumulative frequency graphs.
The following frequency table represents the final exam grades for grade 3 students.
What is the frequency of the class containing the median?
The following frequency table represents the ages of members of a health club.
What is the total number of members?
In which age group does the median exist?
The following frequency table represents the time records for 26 racers, to the nearest second.
|Time Records (s)||50–55||55–60||60–65||65–70|
Estimate the median of the data, approximate to the nearest integer.