Question

The density of people per square kilometer for African countries is in table #1. Create a frequency distribution, relative frequency distribution, and cumulative frequency distribution using 8 classes. Table #1: Data of Density of People per Square Kilometer 15 16 81 3 62 367 42 123 8 9 337 12 29 70 39 83 26 51 79 6 157 105 42 45 72 72 37 4 36 134 12 3 630 563 72 29 3 13 176 341 415 187 65 194 75 16 41 18 69 49 103 65 143 2 18 31

Answer #1

**Solution:**

**The class width is calculated as:**

The frequency distribution table is given below:

Class Interval |
Frequency |

2-81 | 39 |

81-160 | 8 |

160-239 | 3 |

239-318 | 0 |

318-397 | 3 |

397-476 | 1 |

476-555 | 0 |

555-634 | 2 |

The relative frequency distribution table is:

Class Interval | Relative Frequency |

2-81 | 0.6964 |

81-160 | 0.1429 |

160-239 | 0.0536 |

239-318 | 0 |

318-397 | 0.0536 |

397-476 | 0.0179 |

476-555 | 0 |

555-634 | 0.0357 |

The cumulative frequency distribution table is:

Class Interval | Cumulative Frequency |

2-81 | 39 |

81-160 | 47 |

160-239 | 50 |

239-318 | 50 |

318-397 | 53 |

397-476 | 54 |

476-555 | 54 |

555-634 | 56 |

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