Check it out!

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# Check it out! - PowerPoint PPT Presentation

Check it out!. A group of 10 young mountaineers is climbing Mount Everest. The climbers’ ages are listed below. Use this data to answer the questions . 28 23 15 22 21 25 22 18 22 14. What is the mean age of the data set ? What is the median age of the data set ?

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Check it out!

4.1.3: Comparing Data Sets

A group of 10 young mountaineers is climbing Mount Everest. The climbers’ ages are listed below. Use this data to answer the questions.

• 28 23 15 22 21 25 22 18 22 14

4.1.3: Comparing Data Sets

What is the mean age of the data set?

What is the median age of the data set?

What is the mean absolute deviation of the data set?

4.1.3: Comparing Data Sets

What is the mean age of the data set?

The mean is the average of the data values.

4.1.3: Comparing Data Sets

What is the median age of the data set?

Arrange the data from least to greatest.

14 15 18 21 22 22 22 23 25 28

There is an even number of data values. The median is the average of the two middle-most values of the data set.

4.1.3: Comparing Data Sets

What is the mean absolute deviation of the data set?

Find the difference between each data value and the mean (21).

4.1.3: Comparing Data Sets

Find the sum of the absolute differences and divide by the number of data points (10).

4.1.3: Comparing Data Sets