# Basic Statistics & Probability: The Graph Is Always Greener Quiz

*? Put your knowledge to the test. Good luck — the Stickman is counting on you!*

**Basic Statistics & Probability**Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sept | Oct | Nov | Dec |

67.2 | 68.5 | 71.7 | 75.2 | 78.7 | 81.4 | 82.6 | 82.8 | 81.9 | 78.3 | 73.6 | 69.1 |

Compare the mean and median of the data.

Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sept | Oct | Nov | Dec |

67.2 | 68.5 | 71.7 | 75.2 | 78.7 | 81.4 | 82.6 | 82.8 | 81.9 | 78.3 | 73.6 | 69.1 |

Find the interquartile range of this data.

Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sept | Oct | Nov | Dec |

67.2 | 68.5 | 71.7 | 75.2 | 78.7 | 81.4 | 82.6 | 82.8 | 81.9 | 78.3 | 73.6 | 69.1 |

If the average temperature in August were changed to 85°F, how would the mean and median change?

What type of correlation is depicted with this graph?

*American Idol.*

What age, in years, has produced the most finalists?

*Hint:* *This problem is trickier than it seems. There are four 16 year-olds, eight 17 year-olds, two 18 year-olds, and so on. *

Find the median of the data set.

What percentage of the students has a GPA above 2.0?

What is the mode of this data?

Which score(s) is an outlier?