Problem 18BSC

Cumulative Frequency Distributions. Construct the cumulative frequency distribution that corresponds to the frequency distribution in the exercise indicated.

Exercise 6

Exercise 6

identify the class width, class midpoints, and class boundaries for the given frequency distribution. The frequency distributions are based on real data from Appendix B.

Answer:

Step 1 of 3

Cumulative frequency is determined by adding the sum of the previous row to the new row.

C - I |
Frequency(f) |
Cumulative frequency |

20-29 |
1 |
1 |

30-39 |
26 |
27 |

40-49 |
35 |
62 |

50-59 |
13 |
75 |

60-69 |
6 |
81 |

70-79 |
1 |
82 |