Contemporary Mathematics for Business & Consumers

8th Edition

ISBN: 9781305585447

Author: Robert Brechner, Geroge Bergeman

Publisher: Cengage Learning

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Textbook Question

Chapter 21, Problem 5AT

You are the human resource director for Apollo Industries. Forty applicants for employment were given an assessment test in math and English with the following results:

87	67	81	83	94	72	84	68	33	56
91	79	88	95	84	75	46	27	69	97
69	57	66	81	87	19	76	54	78	91
78	72	75	89	74	92	45	59	85	72

a. What are the range and mode of these scores?

b. Group the data into nine classes of equal size (11-20, 21-30, etc.) and construct a frequency distribution.

c. Calculate the mean of the grouped data by using 15.5, 25.5, etc., as the midpoints.

d. If company policy is to consider only those who score 10 points higher or better than the mean of the data, how many from this group are still being considered for the job?

e. Construct a histogram of the assessment test scores frequency distribution.

Chapter 21, Problem 5AT, 5. You are the human resource director for Apollo Industries. Forty applicants for employment were

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Chapter 21, Problem 4AT

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Chapter 21 Solutions

Contemporary Mathematics for Business & Consumers

Ch. 21.I - Use Table 21-1 to answer the following questions...Ch. 21.I - Use Exhibits 21-1 and 21-2 to answer the following...Ch. 21.I - Prob. 3TIE Ch. 21.I - Prob. 4TIE Ch. 21.I - Prob. 5TIE Ch. 21.I - Prob. 6TIE Ch. 21.I - Prob. 7TIE Ch. 21.I - Prob. 8TIE Ch. 21.I - Prob. 9TIE Ch. 21.I - Prob. 10TIE

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87	67	81	83	94	72	84	68	33	56
91	79	88	95	84	75	46	27	69	97
69	57	66	81	87	19	76	54	78	91
78	72	75	89	74	92	45	59	85	72

87	67	81	83	94	72	84	68	33	56
91	79	88	95	84	75	46	27	69	97
69	57	66	81	87	19	76	54	78	91
78	72	75	89	74	92	45	59	85	72

Solution Summary: The author calculates the range and mode of 40 applicants who gave an assessment test in math and English for Apollo Industries.

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Chapter 21 Solutions

Additional Math Textbook Solutions

87	67	81	83	94	72	84	68	33	56
91	79	88	95	84	75	46	27	69	97
69	57	66	81	87	19	76	54	78	91
78	72	75	89	74	92	45	59	85	72