M8 Mean, Median, Mode

True or False: Mean, Median, and Mode are measures that describe the center of a data set.

• True

• False

True or False: To calculate the mean, the data set must be in numerical order.

• True

• False

What is the mean?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

What is the median?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

What do you do if there are two numbers in "the middle" when you are finding the median?

• Choose the smaller number

• Add the two numbers in the middle & then divide by two

• They are both the median

• Subtract the two numbers

What is the mode?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

An ______________________________ is a value that "lies outside" (is much smaller or larger than) most of the other values in a set of data.

• Outlier

• Median

• Mode

• Range

Find the mean. (Round to one decimal place.)

Find the median.

Find the mode.

• 15

• 13

• 14

• 16