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This is a whole lesson on the or Finding the mean from grouped data. This still tends to be a popular exam question and a question year on year done poorly. 12 slides + worksheet.
The lesson comes with:
+ starter (averages in a problem - typical question students struggle with)
+ learning objectives (differentiated)
+ keywords (really important)
+ excellent clear teaching slides (with lots of custom animation)
+ lots of examples
+ MWB activity (good AFL)
+ worksheet (with answers)
ALL 49 LESSONS for teaching all the different topics of STATISTICS are available as one BIG BUNDLE in the link below:
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