Averages Handling Data.

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Presentation transcript:

Averages Handling Data

To find the Mean, Median, Mode and Range of a given set of data. Aims To find the Mean, Median, Mode and Range of a given set of data.

Hey diddle diddle, the median’s in the MIDDLE you ADD and DIVIDE for the mean the mode is the MOST and the range is the DIFFERENCE between

Mean To find the mean you add all the numbers together and divide by how many numbers there are Find the mean of the following: 3, 6, 1, 4, 5, 5

Mean To find the mean you add all the numbers together and divide by how many numbers there are Find the mean of the following: 3, 6, 1, 4, 5, 5 3+6+1+4+5+5 = 24 24 / 6 = 4

Mode The mode is the number that occurs the most Find the mode of the following: 2, 3, 4, 5, 3, 4, 5, 3, 2, 6, 2, 3, 7, 3, 9, 3

Mode The mode is the number that occurs the most Find the mode of the following: 2, 3, 4, 5, 3, 4, 5, 3, 2, 6, 2, 3, 7, 3, 9, 3 Mode = 3

Median The median is the middle number of an ordered set of data Find the median of the following: 4, 3, 6, 7, 4, 5, 2, 3, 2

Median The median is the middle number of an ordered set of data Find the median of the following: 4, 3, 6, 7, 4, 5, 2, 3, 2 Order them: 2, 2, 3, 3, 4, 4, 5, 6, 7 Median = 4

Range The range is the difference between the largest number and the smallest number Find the range of the following data: 12, 45, 66, 23, 34, 55, 11

Range The range is the difference between the largest number and the smallest number Find the range of the following data: 12, 45, 66, 23, 34, 55, 11 Range = 66 – 11 Range = 5

Page 271 Q1 – Q7

Plenary Find the mean, median mode and range of the following set of data 9, 10, 13, 8, 10 .

Plenary Find the mean, median mode and range of the following set of data 9, 10, 13, 8, 10 Answers: Mean = 10 Median = 10 Mode = 10 Range = 5