LEARNING OBJECTIVE: How to use the cumulative frequency to find the median and interquartile Range.
SUCCESS CRITERIA: You will be able to list the cumulative frequency from a frequency table and use it to estimate the Median, Upper quartile and lower quartile. Using these results you will be able to find the Interquartile range to make comparisons between sets of data.
STARTER Reminder of How to find cumulative Frequency, draw graph and find interquartle range
LESSON
Try q2 onwards from Ex 2D in Exercise books
PLENARY: Checking answers, Look at a past paper question
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