The mean score on a given test can be found for an entire class. Take a look at this American History class:

Marco | 90 | ..... | Adriane | 85 |

Linda | 75 | ..... | Christy | 99 |

Chantelle | 88 | ..... | Jay | 45 |

Ralph | 68 | ..... | Marcus | 97 |

Chi Bo | 92 | ..... | Donnie | 85 |

We find the mean score, by adding all the scores together and dividing by 10 (the number of scores).

In a way, it is like we lump all the points together,then divide them equally amongst the students.

Thus, the mean is 82.4. Have you used this formula before to find your own grades?

Continue to explore this statistic as you check out some real stats.

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*send comments and questions to Jay Hill*