Measures of Variability (pt 2)

Measures of Variability (pt 2)

By Kristina Leonard

Fill in the Blank

Given the data: 136, 150, 119, 150, 125, 140.

Find the upper quartile (Q3).

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Given the data: 136, 150, 119, 150, 125, 140.

Find the lower quartile (Q1).

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Given the data: 136, 150, 119, 150, 125, 140.

Find the median (Q2).

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Find the lower quartile (Q1) of the following set of scores 5, 9, 10, 6 9, 11, 13, 12, 15

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Find the median (Q2) of the following set of scores 5, 9, 10, 6 9, 11, 13, 12, 15

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Find the upper quartile (Q3) of the following set of scores 5, 9, 10, 6 9, 11, 13, 12, 15

​The interquartile range is the difference between the upper quartile and the lower quartile. IQR = Q3 - Q1

Interquartile Range (IQR)

​Ex. 26, 24, 32, 15, 33, 19,22

Open Ended

How do you find the interquartile range?

Fill in the Blank

What is the interquartile range (IQR) of the data set below?

4, 6, 12, 12, 3, 2, 4, 4, 6?

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Find the IQR using the following data.

86, 110, 60, 82, 94, 50

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Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the lower quartile (Q1).

Fill in the Blank

Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the median (Q2).

Fill in the Blank

Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the upper quartile (Q3).

Fill in the Blank

Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the Interquartile Range (IQR).

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Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the mean or average.

*Round to the nearest tenth

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Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the range

Multiple Choice

Given the data: 22, 16, 14, 12, 11, 32, 33, 43

Find the mode

• No mode

• 32

• 33

• 12

Fill in the Blank

Given the data: 63, 72, 45, 60, 93, 16, 12, 42, 78.

Find the median (Q2).

Fill in the Blank

Given the data: 63, 72, 45, 60, 93, 16, 12, 42, 78.

Find the lower quartile (Q1).

Fill in the Blank

Given the data: 63, 72, 45, 60, 93, 16, 12, 42, 78.

Find the upper quartile (Q3).

Fill in the Blank

Given the data: 63, 72, 45, 60, 93, 16, 12, 42, 78.

Find the interquartile range (IQR).

Multiple Choice

To find the _________ you add up all the numbers and then divide by how many numbers you have.

• Mean
• Median
• Mode
• Range

Multiple Choice

To find the ______ you put all numbers in order from least to greatest and then take the largest number minus the smallest number.

• Mean
• Median
• Mode
• Range

Multiple Choice

To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.

• Mean
• Median
• Mode
• Range

Multiple Choice

A data set can have more than one mode

• True
• False

Multiple Choice

A data set can have more than one median?

• True
• False