9.1.3 Mean, Median, Mode, and Range

Open Ended

As Rhys applies for jobs, he is interested in the typical salary for each job position.

If you were Rhys, would you be most interested in knowing the mean, median, or mode salary for the job position you are applying for? Why?

Hotspot

Ten teenagers were randomly sampled. The data set below shows how many pets each teenager had.​

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1, 0, 2, 1, 7, 0, 2, 0, 1, 10​

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What is the mean number of pets for the ten teenagers sampled and where is it located on the dot plot below?​

Dropdown

Below is the dot plot showing the number of runs scored in ten different baseball games. Is each statement about the scenario true or false?​ Remember to list the values from the dot plot to find the data set.

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The median is 5 runs.​

Select answer

The median is not one of the values in the data set.​​

Select answer

The median is 4 runs.​​

Select answer

All of the data points listed in order and used to find the median are 0, 2, 3, 3, 5, 5, 6, 6, 6, 8.​​

Select answer

Match

Match each data set to the mode(s) of the data set.​

• 1, 1, 2, 3, 3, 4, 5, 5, 5, 6​

• 1, 1, 1, 2, 3, 3, 3, 4, 5, 5​

• 1, 1, 2, 3, 3, 3, 4, 5, 6, 6​

5

1 and 3

3

• 5

• 1 and 3

• 3

Fill in the Blank

Gianni wondered how many laps around a track each of his 10 friends could run. The data below shows the results.​

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2, 2, 2, 2, 3, 3, 3, 4, 6, 8​

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What is the mean of this data set?

.

Fill in the Blank

Gianni wondered how many laps around a track each of his 10 friends could run. The data below shows the results.​

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2, 2, 2, 2, 3, 3, 3, 4, 6, 8​

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What is the median of this data set?

Fill in the Blank

Gianni wondered how many laps around a track each of his 10 friends could run. The data below shows the results.​

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2, 2, 2, 2, 3, 3, 3, 4, 6, 8​

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What is the mode of this data set?

Fill in the Blank

Gianni wondered how many laps around a track each of his 10 friends could run. The data below shows the results.​

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2, 2, 2, 2, 3, 3, 3, 4, 6, 8​

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Which measure of center should be used to describe this data set?​

Hotspot

Which data set has the lowest value for the range?

Dropdown

Nina and Xavis are studying for an upcoming math test. The dot plots below show the number of minutes each of them studied over the past few days.​

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Which statements are true? Which statements are false?



The mean is an appropriate measure of center for Nina’s study times.​​

Select answer

The range for Xavis’s study times is greater.​​

Select answer

The range for Nina’s study times is greater.​​

Select answer

The mean is an appropriate measure of center for Xavis’s study times.​​

Select answer

Match

Match each value to the correct mean, median, mode, or range.​

• 8.5 minutes​

• 9 minutes

• 10 minutes and 6 minutes

• 5 minutes

Mean

Median

Mode

Range

• Mean

• Median

• Mode

• Range

Multiple Choice

When a manager sorts the hours worked over the last week into numerical order, she notices that exactly 12 employees worked more than Savannah and exactly 12 employees worked less than Savannah.​

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Which term describes Savannah’s number of hours worked?

• Range of the data set

• Mean of the data set

• Median of the data set

• Mode of the data set

What now?

Flex day 5/23
No School 5/26