LEARNING OBJECTIVE: Learn how to find an approximation of the mean from a grouped frequency table
SUCCESS CRITERIA: You will understand why the mean from a grouped frequency table is always an approximation and know how to find it
STARTER:
LESSON: Quickly work through Screens 1,2,3,4 to recap a frequency table. Then work thorugh all but last screen to develop ideas for mean from a grouped frequency table;
Why is it an approximation?
Discrete Data and Continuous data and the notation that goes with it
Work through Ex 1C on page 9 of higher text book
PLENARY: Checking Answers, Looking at Exam Questions, checking answer to Why is it an approximation
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