Interpret Mean and Median

The dot plot represents the amount of time Joey played with his robot. What is the mean of the data?

• 5

• 9

• 8

What is the median of the data?

• 9

• 5

• 7

• There is no median.

The Stem and Leaf shows how many Jumping Jacks students were able to complete in 3 minutes. What is the Median of this data?

• 32

• 35

• 40

• 20

What is the mean of the data?

• 32

• 35

• 40

• 20

Bryan recorded the number of hours he slept last week. The data is shown below.
6.5, 7, 7.5, 6.5, 12, 7, 7.5
Which is a true comparison of the measures of center for Bryan's sleep data?

• Median = Mean

• Mean < Median

• Mean > Median

• Range = Mean

A survey was taken of the value of homes in a county, and it was found that the mean home value was $165,000 and the median home value was $125,000. Which of the following situations could explain the difference between the mean and median home values in the county?

• The homes have values that are close to each other.

• There are a few homes that are valued much less than the rest.

• There are a few homes that are valued much more than the rest.

• Many of the homes have values between $125,000 and $165,000.

This list shows the number of text messages 5 friends sent last week: 15, 17, 19, 20, 24

The most appropriate measure of center for this data is the

• mean because all the numbers are close to
  one another in value.

• median because all the numbers are close to
  one another in value.

• mean because 15 text messages is much
  lower than the other numbers.

• median because 15 text messages is much
  lower than the other numbers.

A survey was taken of the value of homes in a county, and it was found that the mean home value was $165,000 and the median home value was $125,000. Which of the following situations could explain the difference between the mean and median home values in the county?

• The homes have values that are close to each other.

• There are a few homes that are valued much less than the rest.

• There are a few homes that are valued much more than the rest.

• Many of the homes have values between $125,000 and $165,000.

A survey was taken of the value of homes in a count, and it was found that the mean home value was $165,000 and the median home value was $125,000. Which of the following situations could explain the difference between the mean and median home values in the county?

• The homes have values that are close to each other.

• There are a few homes that are valued much less than the rest.

• There are a few homes that are valued much more than the rest.

• Many of the homes have values between $125,000 and $165,000

Select all true statements. More than one answer may be selected.

• The median is the number that appears most often in the data.

• The mean is also referred to as the average of the data.

• To find the mean, add the data and divide by the number of pieces of data.

• The median can only be found if there is an odd number of pieces of data.

• An outlier in the data can cause the mean to misrepresent the data.