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# Understanding Data

Whether you're trying to analyze a political poll, the results of a scientific study, or just your sleeping habits, data is the best tool for understanding the world around you. Dive in and see how!

What is the mean of the following three numbers:

\[ 1, 9, 14? \]

\[\]
**Details and Assumptions:**

- The
**mean**of a set of numbers is the average of the set.

\[ \{ 5, 8, 10, 15, 27 \} \]

What is the mean of the above set?

Species | Number of Legs |

Human | 2 |

Dog | 4 |

Cat | 4 |

Ant | 6 |

Octopus | 8 |

Sea pig | 12 |

Using the table above, determine the mean number of legs of the group.

\[ \{ 4, 8, 30 \} \]

What is the mean of the above set?

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