Back-to-Back Stemplots Exercise 19 in Section 23 used back-to-back relative frequency histograms for the ages of actresses and actors that are listed in Data Set 11 of Appendix B. Use the same method to construct back-to-back stemplots of the ages of actresses and actors, and then use the results to compare the two data sets.

Exercise

Earthquake Magnitudes Use the frequency distribution from Exercise 23 in Section 22 to construct a frequency polygon. Applying a loose interpretation of the requirements for a normal distribution, do the magnitudes appear to be normally distributed? Why or why not?

Problem 25BB

Answer:

Step1 of 3:

We have Exercise used back-to-back relative frequency histograms for the ages of actresses and actors that are listed in Data Set 11 of Appendix B.

Best Actresses | ||||||||

22 |
37 |
28 |
63 |
32 |
26 |
31 |
27 |
27 |

30 |
26 |
29 |
24 |
38 |
25 |
29 |
41 |
30 |

35 |
33 |
29 |
38 |
54 |
24 |
25 |
46 |
41 |

40 |
39 |
29 |
27 |
31 |
38 |
29 |
25 |
35 |

43 |
35 |
34 |
34 |
27 |
37 |
42 |
41 |
36 |

41 |
33 |
31 |
74 |
33 |
50 |
38 |
61 |
21 |

26 |
80 |
42 |
29 |
33 |
35 |
45 |
49 |
39 |

26 |
25 |
33 |
35 |
35 |
28 |
30 |
29 |
61 |

33 |
45 |

Best Actors | ||||||||

44 |
41 |
62 |
52 |
41 |