Calculating the Mean from a Frequency Distribution

Number of alcoholic beverages consumed by a sample of college students last weekend. (This data is fictitious.)

xvalue |
f |
f(x)multiply |

0 | 5 | 0 |

1 | 10 | 10 |

2 | 5 | 10 |

3 | 10 | 30 |

4 | 5 | 20 |

10 | 2 |
20 |

Sum: | 37 | 90 |

Step 1.
Multiply f(x)

Step 2.
Sum f, Sum f(x)