Review of Statistics

A group of individuals or objects that you want to study is the:

• sample

• population

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a population?

• The mayor's family

• The people who voted for the mayor

• 300 random voters

• The residents of the town

The mean of the data in the table is:

The mode of the data in the table is:

The median of the test grades is:

The dot plot shows how long each student exercised for. Find the mean of the data (round to the tenths):

The dot plot shows how long each person played video games. What is the mode of the data set?

A data set can have more than one mode

• True

• False

Which measure of central tendency best represents this data?

• Mean

• Median

• Mode

• Range

an extreme value in a data set that is either much larger or much smaller than all the other values.

• skew

• interquartile range

• range

• outlier