Chapter 2: Descriptive Statistics

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Pages: 67 - 174

Book edition OER 2018

Author(s) Barbara Illowsky, Susan Dean

Pages 902 pages

ISBN 9781938168208

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159 Questions for Chapter 2: Descriptive Statistics

For each of the following data sets, create a stem plot and identify any outliers.

Found on Page 125
David County has six high schools. Each school sent students to participate in a county-wide science competition. Table 2.41shows the percentage breakdown of competitors from each school, and the percentage of the entire student population of the county that goes to each school. Construct a bar graph that shows the population percentage of competitors from each school.

Found on Page 127
Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976–1977 through 2004–2005.

Found on Page 152
Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976–1977 through 2004–2005.

Found on Page 152
Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976–1977 through 2004–2005.

Found on Page 152
Three students were applying to the same graduate school. They came from schools with different grading systems. Which student had the best GPA when compared to other students at his school? Explain how you determined your answer.

Found on Page 152
A music school has budgeted to purchase three musical instruments. They plan to purchase a piano costing 3,000, a guitar costing 550, and a drum set costing 600. The mean cost for a piano is 4,000 with a standard deviation of 2,500. The mean cost for a guitar is 500 with a standard deviation of 200. The mean cost for drums is 700 with a standard deviation of 100. Which cost is the lowest, when compared to other instruments of the same type? Which cost is the highest when compared to other instruments of the same type. Justify your answer.

Found on Page 152
An elementary school class ran one mile with a mean of 11 minutes and a standard deviation of three minutes. Rachel, a student in the class, ran one mile in eight minutes. A junior high school class ran one mile with a mean of nine minutes and a standard deviation of two minutes. Kenji, a student in the class, ran 1 mile in 8.5 minutes. A high school class ran one mile with a mean of seven minutes and a standard deviation of four minutes. Nedda, a student in the class, ran one mile in eight minutes.

Found on Page 152
The most obese countries in the world have obesity rates that range from 11.4% to 74.6%. This data is summarized in Table 14.

Found on Page 153
Table 2.76 gives the percent of children under five considered to be underweight.

Found on Page 153

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Chapter 2: Descriptive Statistics

Introductory Statistics

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159 Questions for Chapter 2: Descriptive Statistics

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