Allan G. Bluman is a professor emeritus at the Community College of Allegheny County, South Campus, near Pittsburgh. He has taught mathematics and statistics for over 35 years. He received an Apple for the Teacher award in recognition of his bringing excellence to the learning environment at South Campus. He has also taught statistics for Penn State University at the Greater Allegheny (McKeesport) Campus and at the Monroeville Center. He received his master's and doctor's degrees from the University of Pittsburgh. In addition to Elementary Statistics: A Step by Step Approach (Eighth Edition ©2012) and Elementary Statistics: A Brief Version (Fifth Edition ©2010), Al is a co-author on a liberal arts mathematics text published by McGraw-Hill, Math in Our World (2nd Edition ©2011). Al also the author of for mathematics books in the McGraw-Hill DeMystified Series. They are Pre-Algebra, Math Word Problems, Business Math, and Probability. Al Bluman is married and has two sons and a granddaughter.

• CHAPTER 1The Nature of Probability and Statistics 1CHAPTER 2Frequency Distributions and Graphs 41CHAPTER 3Data Description 117CHAPTER 4Probability and Counting Rules 193CHAPTER 5Discrete Probability Distributions 263CHAPTER 6The Normal Distribution 301CHAPTER 7Confidence Intervals and Sample Size 361CHAPTER 8Hypothesis Testing 405CHAPTER 9Testing the Difference Between Two Means, Two Proportions, and Two Variances 481CHAPTER 10Correlation and Regression 543CHAPTER 11Chi-Square and Analysis of Variance (ANOVA) 591APPENDICESA Tables 643B Data Bank 662C Glossary 669D Selected Answers SA–1Annotated Instructor’s Edition replaces Appendix D with all answers and additional material for instructors.E Important Formulas E–1ADDITIONAL TOPICS(Available online in ALEKS 360)Algebra ReviewWriting the Research ReportBayes’ TheoremAlternate Approach to the Standard Normal DistributionBibliography

Allan G. Bluman is a professor emeritus at the Community College of Allegheny County, South Campus, near Pittsburgh. He has taught mathematics and statistics for over 35 years. He received an Apple for the Teacher award in recognition of his bringing excellence to the learning environment at South Campus. He has also taught statistics for Penn State University at the Greater Allegheny (McKeesport) Campus and at the Monroeville Center. He received his master's and doctor's degrees from the University of Pittsburgh. In addition to Elementary Statistics: A Step by Step Approach (Eighth Edition ©2012) and Elementary Statistics: A Brief Version (Fifth Edition ©2010), Al is a co-author on a liberal arts mathematics text published by McGraw-Hill, Math in Our World (2nd Edition ©2011). Al also the author of for mathematics books in the McGraw-Hill DeMystified Series. They are Pre-Algebra, Math Word Problems, Business Math, and Probability. Al Bluman is married and has two sons and a granddaughter.

• CHAPTER 1The Nature of Probability and Statistics 1CHAPTER 2Frequency Distributions and Graphs 41CHAPTER 3Data Description 117CHAPTER 4Probability and Counting Rules 193CHAPTER 5Discrete Probability Distributions 263CHAPTER 6The Normal Distribution 301CHAPTER 7Confidence Intervals and Sample Size 361CHAPTER 8Hypothesis Testing 405CHAPTER 9Testing the Difference Between Two Means, Two Proportions, and Two Variances 481CHAPTER 10Correlation and Regression 543CHAPTER 11Chi-Square and Analysis of Variance (ANOVA) 591APPENDICESA Tables 643B Data Bank 662C Glossary 669D Selected Answers SA–1Annotated Instructor’s Edition replaces Appendix D with all answers and additional material for instructors.E Important Formulas E–1ADDITIONAL TOPICS(Available online in ALEKS 360)Algebra ReviewWriting the Research ReportBayes’ TheoremAlternate Approach to the Standard Normal DistributionBibliography

Allan G. Bluman is a professor emeritus at the Community College of Allegheny County, South Campus, near Pittsburgh. He has taught mathematics and statistics for over 35 years. He received an Apple for the Teacher award in recognition of his bringing excellence to the learning environment at South Campus. He has also taught statistics for Penn State University at the Greater Allegheny (McKeesport) Campus and at the Monroeville Center. He received his master's and doctor's degrees from the University of Pittsburgh. In addition to Elementary Statistics: A Step by Step Approach (Eighth Edition ©2012) and Elementary Statistics: A Brief Version (Fifth Edition ©2010), Al is a co-author on a liberal arts mathematics text published by McGraw-Hill, Math in Our World (2nd Edition ©2011). Al also the author of for mathematics books in the McGraw-Hill DeMystified Series. They are Pre-Algebra, Math Word Problems, Business Math, and Probability. Al Bluman is married and has two sons and a granddaughter.

• CHAPTER 1The Nature of Probability and Statistics 1CHAPTER 2Frequency Distributions and Graphs 41CHAPTER 3Data Description 117CHAPTER 4Probability and Counting Rules 193CHAPTER 5Discrete Probability Distributions 263CHAPTER 6The Normal Distribution 301CHAPTER 7Confidence Intervals and Sample Size 361CHAPTER 8Hypothesis Testing 405CHAPTER 9Testing the Difference Between Two Means, Two Proportions, and Two Variances 481CHAPTER 10Correlation and Regression 543CHAPTER 11Chi-Square and Analysis of Variance (ANOVA) 591APPENDICESA Tables 643B Data Bank 662C Glossary 669D Selected Answers SA–1Annotated Instructor’s Edition replaces Appendix D with all answers and additional material for instructors.E Important Formulas E–1ADDITIONAL TOPICS(Available online in ALEKS 360)Algebra ReviewWriting the Research ReportBayes’ TheoremAlternate Approach to the Standard Normal DistributionBibliography