11th Edition

ISBN: 9780321979438

Author: Margaret L. Lial, Raymond N. Greenwell, Nathan P. Ritchey

Publisher: PEARSON

Concept explainers

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…

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Textbook Question

Chapter 9.1, Problem 1E

For Exercises 1-4, do the following:

(a) Group the data as indicated.

(b) Prepare a frequency distribution with a column for intervals and frequencies.

(d) Construct a frequency polygon.

Use six intervals, starting with 0-24.

7	105	116	73	129	26
29	44	126	82	56	137
43	73	65	141	79	74
121	12	46	37	85	82
2	99	85	95	90	38
86	147	32	84	13	100

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Chapter 8, Problem 82RE

Chapter 9.1, Problem 2E

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Chapter 9 Solutions

Finite Mathematics (11th Edition)

Ch. 9.1 - For Exercises 1-4, do the following: (a) Group the...Ch. 9.1 - For Exercises 1-4, do the following: (a) Group the...Ch. 9.1 - For Exercises 1-4, do the following: (a) Group the...Ch. 9.1 - For Exercises 1-4, do the following: (a) Group...Ch. 9.1 - How does a frequency polygon differ from a...Ch. 9.1 - Discuss the advantages and disadvantages of the...Ch. 9.1 - Prob. 7E Ch. 9.1 - Prob. 8E Ch. 9.1 - Prob. 9E Ch. 9.1 - Prob. 10E

Ch. 9.1 - Prob. 11E Ch. 9.1 - Find the mean for each list of numbers. 12....Ch. 9.1 - Prob. 13E Ch. 9.1 - Prob. 14E Ch. 9.1 - Prob. 15E Ch. 9.1 - Prob. 16E Ch. 9.1 - Prob. 17E Ch. 9.1 - Prob. 18E Ch. 9.1 - Prob. 19E Ch. 9.1 - Prob. 20E Ch. 9.1 - Prob. 21E Ch. 9.1 - Prob. 22E Ch. 9.1 - Prob. 23E Ch. 9.1 - Use a graphing calculator or spreadsheet to...Ch. 9.1 - Find the mode or modes for each list of...Ch. 9.1 - Prob. 26E Ch. 9.1 - Prob. 27E Ch. 9.1 - Prob. 28E Ch. 9.1 - Prob. 29E Ch. 9.1 - Prob. 30E Ch. 9.1 - When is the median the most appropriate measure of...Ch. 9.1 - Prob. 32E Ch. 9.1 - Prob. 33E Ch. 9.1 - Prob. 34E Ch. 9.1 - Prob. 35E Ch. 9.1 - Prob. 36E Ch. 9.1 - Prob. 37E Ch. 9.1 - 38. Salaries The total compensation (in millions...Ch. 9.1 - 39. Household Income The total income for...Ch. 9.1 - Household Income The total income for white...Ch. 9.1 - Prob. 41E Ch. 9.1 - 42. Housing Prices An Erie, PA, newspaper...Ch. 9.1 - Prob. 43E Ch. 9.1 - Pandas The size of the home ranges (in square...Ch. 9.1 - Blood Types The number of recognized blood types...Ch. 9.1 - 46. Temperature The following table gives the...Ch. 9.1 - Prob. 47E Ch. 9.1 - Prob. 48E Ch. 9.1 - Prob. 49E Ch. 9.1 - Prob. 50E Ch. 9.1 - 51. Baseball Salaries The Major League Baseball...Ch. 9.1 - Prob. 52E Ch. 9.2 - How are the variance and the standard deviation...Ch. 9.2 - Prob. 2E Ch. 9.2 - Prob. 3E Ch. 9.2 - Prob. 4E Ch. 9.2 - Prob. 5E Ch. 9.2 - Prob. 6E Ch. 9.2 - Find the range and standard deviation for each...Ch. 9.2 - Prob. 8E Ch. 9.2 - Prob. 9E Ch. 9.2 - Prob. 10E Ch. 9.2 - Prob. 11E Ch. 9.2 - Prob. 12E Ch. 9.2 - Prob. 13E Ch. 9.2 - Prob. 14E Ch. 9.2 - Prob. 15E Ch. 9.2 - Prob. 16E Ch. 9.2 - Prob. 17E Ch. 9.2 - Prob. 18E Ch. 9.2 - Prob. 19E Ch. 9.2 - Prob. 20E Ch. 9.2 - Prob. 21E Ch. 9.2 - Prob. 22E Ch. 9.2 - Prob. 23E Ch. 9.2 - Prob. 24E Ch. 9.2 - Prob. 25E Ch. 9.2 - Sales Promotion The Quaker Oats Company conducted...Ch. 9.2 - Prob. 27E Ch. 9.2 - Prob. 28E Ch. 9.2 - 29. Washer Thickness An assembly-line machine...Ch. 9.2 - Unemployment The number of unemployed workers in...Ch. 9.2 - Prob. 31E Ch. 9.2 - Prob. 32E Ch. 9.2 - v 33. Home-Based Workers Because of advancements...Ch. 9.2 - Prob. 34E Ch. 9.2 - Prob. 35E Ch. 9.2 - Prob. 36E Ch. 9.2 - Prob. 37E Ch. 9.2 - Prob. 38E Ch. 9.2 - 39. Baseball Salaries The table in Exercise 51,...Ch. 9.2 - 40. Box Office Receipts The table below lists...Ch. 9.2 - Prob. 41E Ch. 9.3 - Prob. 1E Ch. 9.3 - Prob. 2E Ch. 9.3 - Prob. 3E Ch. 9.3 - Prob. 4E Ch. 9.3 - Prob. 5E Ch. 9.3 - Prob. 6E Ch. 9.3 - Prob. 7E Ch. 9.3 - Prob. 8E Ch. 9.3 - Prob. 9E Ch. 9.3 - Find the percent of the total area under the...Ch. 9.3 - Prob. 11E Ch. 9.3 - Find the percent of the total area under the...Ch. 9.3 - Prob. 13E Ch. 9.3 - Find the percent of the total area under the...Ch. 9.3 - Prob. 15E Ch. 9.3 - Find a z-score satisfying the following...Ch. 9.3 - Prob. 17E Ch. 9.3 - Find a z-score satisfying the following...Ch. 9.3 - Prob. 19E Ch. 9.3 - Prob. 20E Ch. 9.3 - Prob. 21E Ch. 9.3 - In all of the following applications, assume the...Ch. 9.3 - Prob. 23E Ch. 9.3 - In all of the following applications, assume the...Ch. 9.3 - Prob. 25E Ch. 9.3 - In all of the following applications, assume the...Ch. 9.3 - Prob. 27E Ch. 9.3 - Prob. 28E Ch. 9.3 - Prob. 29E Ch. 9.3 - Quality Control A box of oatmeal must contain 16...Ch. 9.3 - Prob. 31E Ch. 9.3 - Quality Control A box of oatmeal must contain 16...Ch. 9.3 - Prob. 33E Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - 36. Between 1600 and 2000 g Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - Annual Bonuses Salespeople of a large corporation...Ch. 9.3 - Grocery Bills At the Discount Market, the average...Ch. 9.3 - 41. Quality Control A machine that fills quart...Ch. 9.3 - 42. Quality Control A machine produces bolls with...Ch. 9.3 - Prob. 43E Ch. 9.3 - Prob. 44E Ch. 9.3 - Prob. 45E Ch. 9.3 - Prob. 46E Ch. 9.3 - Prob. 47E Ch. 9.3 - Prob. 48E Ch. 9.3 - Prob. 49E Ch. 9.3 - Prob. 50E Ch. 9.3 - Prob. 51E Ch. 9.3 - Prob. 52E Ch. 9.3 - Prob. 53E Ch. 9.3 - Prob. 54E Ch. 9.3 - Prob. 55E Ch. 9.3 - Prob. 56E Ch. 9.3 - Prob. 57E Ch. 9.3 - Prob. 58E Ch. 9.3 - Prob. 59E Ch. 9.3 - Prob. 60E Ch. 9.3 - Prob. 61E Ch. 9.3 - Prob. 62E Ch. 9.4 - Prob. 1E Ch. 9.4 - Prob. 2E Ch. 9.4 - Prob. 3E Ch. 9.4 - Suppose 16 coins are tossed. 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Check the Court's calculation of 29...Ch. 9 - Prob. 2EA Ch. 9 - Prob. 3EA Ch. 9 - Prob. 4EA Ch. 9 - Prob. 5EA Ch. 9 - Prob. 1RE Ch. 9 - Prob. 2RE Ch. 9 - Prob. 3RE Ch. 9 - Prob. 4RE Ch. 9 - Prob. 5RE Ch. 9 - Prob. 6RE Ch. 9 - Prob. 7RE Ch. 9 - Prob. 8RE Ch. 9 - Prob. 9RE Ch. 9 - Prob. 10RE Ch. 9 - Prob. 11RE Ch. 9 - Prob. 12RE Ch. 9 - Prob. 13RE Ch. 9 - Prob. 14RE Ch. 9 - Prob. 15RE Ch. 9 - Prob. 16RE Ch. 9 - Prob. 17RE Ch. 9 - Prob. 18RE Ch. 9 - Prob. 19RE Ch. 9 - Prob. 20RE Ch. 9 - Prob. 21RE Ch. 9 - Find the median and the mode (or modes) for each...Ch. 9 - Find the median and the mode (or modes) for each...Ch. 9 - Prob. 24RE Ch. 9 - Prob. 25RE Ch. 9 - 26. What is meant by the range of a...Ch. 9 - Prob. 27RE Ch. 9 - Prob. 28RE Ch. 9 - Prob. 29RE Ch. 9 - Prob. 30RE Ch. 9 - Prob. 31RE Ch. 9 - Prob. 32RE Ch. 9 - Prob. 33RE Ch. 9 - Prob. 34RE Ch. 9 - Prob. 35RE Ch. 9 - Prob. 36RE Ch. 9 - Prob. 37RE Ch. 9 - Prob. 38RE Ch. 9 - Prob. 39RE Ch. 9 - Prob. 40RE Ch. 9 - Prob. 41RE Ch. 9 - Prob. 42RE Ch. 9 - Prob. 43RE Ch. 9 - Prob. 44RE Ch. 9 - Prob. 45RE Ch. 9 - Prob. 46RE Ch. 9 - Prob. 47RE Ch. 9 - Prob. 48RE Ch. 9 - Prob. 49RE Ch. 9 - Prob. 50RE Ch. 9 - 51. Use the normal distribution to find the...Ch. 9 - Prob. 52RE Ch. 9 - Prob. 53RE Ch. 9 - Prob. 54RE Ch. 9 - Prob. 55RE Ch. 9 - Prob. 56RE Ch. 9 - Prob. 57RE Ch. 9 - Prob. 58RE Ch. 9 - 59. Broadway In the survey described in Exercise...

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7	105	116	73	129	26
29	44	126	82	56	137
43	73	65	141	79	74
121	12	46	37	85	82
2	99	85	95	90	38
86	147	32	84	13	100

7	105	116	73	129	26
29	44	126	82	56	137
43	73	65	141	79	74
121	12	46	37	85	82
2	99	85	95	90	38
86	147	32	84	13	100

Solution Summary: The author determines the frequency distribution for the provided data based on the interval size and maximum number in the data.

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Chapter 9 Solutions

7	105	116	73	129	26
29	44	126	82	56	137
43	73	65	141	79	74
121	12	46	37	85	82
2	99	85	95	90	38
86	147	32	84	13	100