Morning! Hope you all had a fabulous weekend. *Wait, it was the weekend? How do you even know what day it is anymore??!*
Well, Joe Wicks wasn't on and I didn't post any maths so it must have been the weekend.
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Today, I've chosen to give you some averages to work on. Always a topic that students mix up/forget/despair about.
Up to GCSE there are 3 types of average that you need to be able to find; mode, median, and mean. You'll also probably be taught about the range alongside these, but remember the range is not an average, it's a measure of spread; how varied the data is.
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Quick tips on finding these;
MOde: MOst common. Which piece of data appears the most? Can be used for non-numerical data. You may find there is no mode or in some cases two modes (bi-modal).
Median: middle. The middle value when all the data is in ascending order. If you have an even amount of data you will not have one middle value, in this case find the mean of the two middle values (see below).
Mean: such a meanie, it takes a while. Add up all the data values and divide by the number of values.
Range: how spread out your data is. Biggest value take away the smallest value.
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You can use these to compare sets of data, and should also have an understanding of why one average may be better than the others in certain circumstances. .
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I've given you three different types of questions on this topic. Find the mode, median, mean and range of the number of Easter eggs from the raw data set and from a frequency table, then try a little problem solving question. Good luck.
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