Math

StatisticsEssentials Of StatisticsGER Twenty-five residents of a community for senior citizens were asked to keep track of the number of hours they watched TV during the past week. 20 2 12 7 32 7 10 7 13 17 14 15 15 9 27 5 21 4 7 6 2 18 10 5 11 a. Construct a frequency distribution to display these data. b. What are the midpoints of the class intervals? c. Add columns to the table to display the percentage distribution, cumulative frequencies, and cumulative percentages. d. Write a paragraph summarizing this distribution of scores.BuyFind*arrow_forward*

4th Edition

HEALEY + 1 other

Publisher: Cengage Learning,

ISBN: 9781305093836

Chapter 2, Problem 2.8P

Textbook Problem

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** GER** Twenty-five residents of a community for senior citizens were asked to keep track of the number of hours they watched TV during the past week.

20 | 2 | 12 | 7 | 32 |

7 | 10 | 7 | 13 | 17 |

14 | 15 | 15 | 9 | 27 |

5 | 21 | 4 | 7 | 6 |

2 | 18 | 10 | 5 | 11 |

a. Construct a frequency distribution to display these data.

b. What are the midpoints of the class intervals?

c. Add columns to the table to display the percentage distribution, cumulative frequencies, and cumulative percentages.

d. Write a paragraph summarizing this distribution of scores.

Expert Solution

To determine

**a)**

**To Construct:**

A frequency distribution.

Set *k* = 10, R = 32 – 2 = 30, so we can round off interval size to i = 3. The first interval will be 0-2, to include the low score of 2, and the highest interval will be 30–32.

Hours | Frequencies |

0-2 | 2 |

Expert Solution

To determine

**b)**

**To find:**

The midpoints of the class intervals.

Expert Solution

To determine

**c)**

**To Display:**

The percentage distribution, cumulative frequencies, and cumulative percentages.

Expert Solution

To determine

**d)**

**To summarize:**

A paragraph about the distribution of the scores.

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