Mean, Median and mode

​Average

Sum of all numbers ​in the data set divided by the total number of data values in the set

​Measure of center

Order the ​values from least to greatest, then find the middle

Most frequent value

The value that occurs the most​

Carla ​is in a bowling league. The league is ranking the teams by average score. What is the mean, or average, final score of the five bowlers on Carla's team?

Add all final scores and divide by 5

​Sum all of the values:

95 + 87 + 84 + 81 + 83 = 430

​

​Divide by the number of values:

​430 ÷ 5 = 86

Add all final scores and divide by 5

​Find the Mean

Trey and Sarah each ​download songs to their music libraries. Their players list each type of music and the total playing time in minutes for each type. How can Trey and Sarah each summarize their data sets using the median?

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Put numbers in order, find the middle

​​Find the median

​Put numbers in order:

35, 37, 38, 42, 46, 51, 59, 61, 62, 63, 67, 67, 72

Find the middle:​

​35, 37, 38, 42, 46, 51, 59, 61, 62, 63, 67, 67, 72








Put numbers in order, find the middle

Find the median

Look at Trey's and Sarah's data music libraries. ​How can Trey and Sarah each summarize their data sets using the mode?

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most frequent value

Find the mode

Look at Trey's and Sarah's data music libraries. ​How can Trey and Sarah each summarize their data sets using the mode?

​

35, 37, 38, 42, 46, 51, 59, 61, 62, 63, 67, 67, 72

​


most frequent value

Find the mode