Mean, Median and Mode MEAN Learning Objectives: to understand and use the mean, median and mode on a list of numbers. How much do you know? 2 3 8 8 5 7 6 5 5 11 + 2 3 8 8 5 7 6 5 5 11 60 ÷ 10 2 3 8 5 7 6 5 11 + + 5 + + + + + + = 60 first add all the numbers up

then divide by how many numbers there are there are 10 numbers MEDIAN 2 3 8 8 5 7 6 5 5 11 5 2 3 8 5 7 6 5 11 first put the numbers in order

then find the middle number if there are two middle numbers, then add them together and divide by two 5 numbers 5 numbers 2 3 8 8 5 7 6 5 5 11 2 3 8 5 7 5 11 first put the numbers in order

then see which number occurs the most MODE 5 6 there are three 's, so is the number that occurs most Now have a go! 5 7 9 11 9 13 MEAN: MEDIAN: MODE: 8 = 6 + 6 =11 11 ÷ 2 = 5.5 8 5 8 MEAN: MEDIAN: MODE: 5 6 5.5 In pairs, use the number cards and work out the mean median and mode for the set of numbers. 8 9 9 9 9 10 5 MEAN: MEDIAN: MODE: 5+7+8+9+9+9+10+11+13= 81 81 ÷ 9 = 9 5 7 8 9 9 9 10 11 13 9 5 7 8 9 9 9 10 11 13 9

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