Chapter 2, Problem 6P

BuyFind*arrow_forward*

8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

The following scores are the ages for a random sample of *n* = 30 drivers who were issued speeding tickets in New York during 2008. Determine the best interval width and place the scores in a grouped frequency distribution table. Prom looking at your table, does it appear that tickets are issued equally across age groups?

17 | 30 | 45 | 20 | 39 | 53 | 28 | 19 |

24 | 21 | 34 | 38 | 22 | 29 | 64 | |

22 | 44 | 36 | 16 | 56 | 20 | 23 | 58 |

32 | 25 | 28 | 22 | 51 | 26 | 43 |

To determine

The best interval width and place the scores in a grouped frequency distribution table.

**To check:** Whether the distribution appears that tickets are issued equally across age groups.

Explanation

**Given info:**

The ages for random samples of 30drivers are given as:

Ages | |

17 | 30 |

45 | 20 |

39 | 53 |

28 | 19 |

24 | 21 |

34 | 38 |

22 | 29 |

64 | 22 |

44 | 36 |

16 | 56 |

20 | 23 |

58 | 32 |

25 | 22 |

28 | 51 |

26 | 43 |

**Justification:**

The ages that range from

Width |
Number of intervals needed to cover a range of 46 points |

2 | 25(Too many) |

5 | 10 (OK) |

10 | 5 (Too low) |

**Conclusion:**

An interval width of 5 with 10 intervals is the best option

Understanding Basic Statistics

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

Essentials Of Statistics

Probability and Statistics for Engineering and the Sciences

Statistics for The Behavioral Sciences (MindTap Course List)

Finite Mathematics and Applied Calculus (MindTap Course List)

Calculus: Early Transcendentals

Finite Mathematics for the Managerial, Life, and Social Sciences

Precalculus: Mathematics for Calculus (Standalone Book)

Elementary Technical Mathematics

Elementary Geometry For College Students, 7e

Trigonometry (MindTap Course List)

Calculus (MindTap Course List)

Elements Of Modern Algebra

Finite Mathematics

Contemporary Mathematics for Business & Consumers

Mathematical Excursions (MindTap Course List)

Single Variable Calculus

Calculus (MindTap Course List)

Calculus: Early Transcendental Functions

Applied Calculus

Mathematical Applications for the Management, Life, and Social Sciences

Single Variable Calculus: Early Transcendentals, Volume I

Calculus: An Applied Approach (MindTap Course List)

Multivariable Calculus

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

Calculus: Early Transcendental Functions (MindTap Course List)

Calculus of a Single Variable

Single Variable Calculus: Early Transcendentals

Intermediate Algebra

Introduction To Statistics And Data Analysis

Study Guide for Stewart's Multivariable Calculus, 8th

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

Elementary Geometry for College Students