In Exercises, find the mean of the data summarized in the given frequency distribution. Also, compare the computed means to the actual means obtained by using the original list of data values, which areasfoüows: 15.0years.

Years President Lived after First Inauguration |
Frequency |

0–4 |
8 |

5–9 |
2 |

10–14 |
5 |

15–19 |
7 |

20–24 |
4 |

25–29 |
6 |

30–34 |
0 |

35–39 |
1 |

Answer :

Step 1 of 2 :

Given, Years President Lived after First Inauguration and frequency

Years President Lived after First Inauguration |
Frequency |

0 - 4 |
8 |

5 - 9 |
2 |

10 - 14 |
5 |

15 - 19 |
7 |

20 - 24 |
4 |

25 - 29 |
6 |

30 - 34 |
0 |

35 - 39 |
1 |

The claim is to find the mean of the data and compare the computed means to the actual means obtained by using the original list of data values. That is 15.0

Where N = 8+2+5+7+4+6+0+1 = 33