Mean Median Mode Range Biased Unbiased

The difference between the lowest and highest values

• Mean

• Median

• Range

• Mode

Find the mean for the following data set:

14, 19, 17, 19, 22, 17

• 17

• 18

• 19

• 8

Find the median for the following data set:

14, 19, 17, 19, 22, 17

• 17

• 18

• 19

• 8

Find the mode for the following data set:

14, 19, 17, 19, 22, 17

• 17

• 18

• 19

• 17 and 19

Find the range for the following data set:

14, 19, 17, 19, 22, 17

• 2

• 3

• 8

• 18

Your first three test scores were 82, 87, and 90. What must you score on the next test in order to have an average of 85?

• 81

• 85

• 86

• 90

Ten people try a new cereal and rate it on a scale of 1-20. The ratings are shown below. Which averages best represent the data?

1, 3, 3, 1, 20, 2, 2, 4, 2, 2

• mean and median

• range

• mean and mode

• median and mode

Compare the medians in the double box plot.

• On average, Electronics World's MP3 Players cost more than Bargain Basement's by $10.

• On average, Bargain Basement's MP3 Players cost more than Electronics World's by $10.

• Both stores have the same median cost of $65 for MP3 Players.

• Electronics World has a median of $60 and Bargain Basement has a median of $70.

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:7  mode:3  range:6

• median:6  mode:3  range:7

• median:7  mode:3 range:8

The scores awarded to 25 students for an assignment were as follows:
4  7  5  9  8  6  7  7  8  5  6  9  8    5  8  7  4  7  3  6  8  9  7  6  9
What is  the mode?

• 6

• 7

• 8

• 9