      On this webpage you will find my solutions to the thirteenth edition of "Elementary Statistics" by Mario F. Triola. Here is a link to the book's page on amazon.com. If you find my work useful, please consider making a donation. Thank you.

• Chapter 1: Introduction to Statistics
• Section 1-1: Statistical and Critical Thinking
• Section 1-2: Types of Data
• Section 1-3: Collecting Sample Data

• Chapter 2: Exploring Data with Tables and Graphs
• Section 2-1: Frequency Distributions for Organizing and Summarizing Data
• Section 2-2: Histograms
• Section 2-3: Graphs That Enlighten and Graphs That Deceive
• Section 2-4: Scatterplots, Correlation, and Regression

• Chapter 3: Describing, Exploring, and Comparing Data
• Section 3-1: Measures of Center
• Section 3-2: Measures of Variation
• Section 3-3: Measures of Relative Standing and Boxplots

• Chapter 4: Probability
• Section 4-1: Basic Concepts of Probability
• Section 4-2: Addition Rule and Multiplication Rule
• Section 4-3: Complements, Conditional Probability, and Bayes' Theorem
• Section 4-4: Counting
• Section 4-5: Probabilities Through Simulations (download only)

• Chapter 5: Discrete Probability Distributions
• Section 5-1: Probability Distributions
• Section 5-2: Binomial Probability Distributions
• Section 5-3: Poisson Probability Distributions
• Chapter 6: Normal Probability Distributions
• Section 6-1: The Standard Normal Distribution
• Section 6-2: Real Applications of Normal Distributions
• Section 6-3: Sampling Distributions and Estimators
• Section 6-4: The Central Limit Theorem
• Section 6-5: Assessing Normality
• Section 6-6: Normal as Approximation to Binomial

• Chapter 7: Estimating Parameters and Determining Sample Sizes
• Section 7-1: Estimating a Population Proportion
• Section 7-2: Estimating a Population Mean
• Section 7-3: Estimating a Population Standard Deviation or Variance
• Section 7-4: Bootstrapping: Using Technology for Estimates

• Chapter 8: Hypothesis Testing
• Section 8-1: Basics of Hypothesis Testing
• Section 8-2: Testing a Claim About a Proportion
• Section 8-3: Testing a Claim About a Mean
• Section 8-4: Testing a Claim About a Standard Deviation or Variance

• Chapter 9: Inferences From Two Samples
• Section 9-1: Two Proportions
• Section 9-2: Two Means: Independent Samples
• Section 9-3: Two Dependent Samples (Matched Pairs)
• Section 9-4: Two Variances or Standard Deviations
• Chapter 10: Correlation and Regression
• Section 10-1: Correlation
• Section 10-2: Regression
• Section 10-3: Prediction Intervals and Variation
• Section 10-4: Multiple Regression
• Section 10-5: Nonlinear Regression

• Chapter 11: Goodness-of-Fit and Contingency Tables
• Section 11-1: Goodness-of-Fit
• Section 11-2: Contingency Tables

• Chapter 12: Analysis of Variance
• Section 12-1: One-Way ANOVA
• Section 12-2: Two-Way ANOVA

• Chapter 13: Nonparametric Tests
• Section 13-1: Basics of Nonparametric Tests
• Section 13-2: Sign Test
• Section 13-3: Wilcoxon Signed-Ranks Test for Matched Pairs
• Section 13-4: Wilcoxon Rank-Sum Test for Two Independent Samples
• Section 13-5: Kruskal-Wallis Test for Three or More Samples
• Section 13-6: Rank Correlation
• Section 13-7: Runs Test for Randomness

• Chapter 14: Statistics Process Control
• Section 14-1: Control Charts for Variation and Mean
• Section 14-2: Control Charts for Attributes
Section 1-1 Section 1-2 Section 1-3 Ch. 1 Quiz Ch. 1 Review
Exercise 1 Exercise 20 Exercise 1 Exercise 20 Exercise 1 Exercise 20 Exercise 1 Exercise 1
Exercise 2 Exercise 21 Exercise 2 Exercise 21 Exercise 2 Exercise 21 Exercise 2 Exercise 2
Exercise 3 Exercise 22 Exercise 3 Exercise 22 Exercise 3 Exercise 22 Exercise 3 Exercise 3
Exercise 4 Exercise 23 Exercise 4 Exercise 23 Exercise 4 Exercise 23 Exercise 4 Exercise 4
Exercise 5 Exercise 24 Exercise 5 Exercise 24 Exercise 5 Exercise 24 Exercise 5 Exercise 5
Exercise 6 Exercise 25 Exercise 6 Exercise 25 Exercise 6 Exercise 25 Exercise 6 Exercise 6
Exercise 7 Exercise 26 Exercise 7 Exercise 26 Exercise 7 Exercise 26 Exercise 7 Exercise 7
Exercise 8 Exercise 27 Exercise 8 Exercise 27 Exercise 8 Exercise 27 Exercise 8 Exercise 8
Exercise 9 Exercise 28 Exercise 9 Exercise 28 Exercise 9 Exercise 28 Exercise 9 Exercise 9
Exercise 10 Exercise 29 Exercise 10 Exercise 29 Exercise 10 Exercise 29 Exercise 10 Exercise 10
Exercise 11 Exercise 30 Exercise 11 Exercise 30 Exercise 11 Exercise 30
Exercise 12 Exercise 31 Exercise 12 Exercise 31 Exercise 12 Exercise 31
Exercise 13 Exercise 32 Exercise 13 Exercise 32 Exercise 13 Exercise 32
Exercise 14 Exercise 33 Exercise 14 Exercise 33 Exercise 14 Exercise 33
Exercise 15 Exercise 34 Exercise 15 Exercise 15 Exercise 34
Exercise 16 Exercise 35 Exercise 16 Exercise 16 Exercise 35
Exercise 17 Exercise 36 Exercise 17 Exercise 17 Exercise 36
Exercise 18 Exercise 37 Exercise 18 Exercise 18 Exercise 37
Exercise 19 Exercise 38 Exercise 19 Exercise 19
Cumulative Section 2-1 Section 2-2 Section 2-3
Exercise 1 Exercise 1 Exercise 13 Exercise 25 Exercise 1 Exercise 13 Exercise 1 Exercise 13
Exercise 2 Exercise 2 Exercise 14 Exercise 26 Exercise 2 Exercise 14 Exercise 2 Exercise 14
Exercise 3 Exercise 3 Exercise 15 Exercise 27 Exercise 3 Exercise 15 Exercise 3 Exercise 15
Exercise 4 Exercise 4 Exercise 16 Exercise 28 Exercise 4 Exercise 16 Exercise 4 Exercise 16
Exercise 5 Exercise 5 Exercise 17 Exercise 29 Exercise 5 Exercise 17 Exercise 5
Exercise 6 Exercise 6 Exercise 18 Exercise 6 Exercise 18 Exercise 6
Exercise 7 Exercise 7 Exercise 19 Exercise 7 Exercise 19 Exercise 7
Exercise 8 Exercise 8 Exercise 20 Exercise 8 Exercise 20 Exercise 8
Exercise 9 Exercise 9 Exercise 21 Exercise 9 Exercise 21 Exercise 9
Exercise 10 Exercise 10 Exercise 22 Exercise 10 Exercise 10
Exercise 11 Exercise 11 Exercise 23 Exercise 11 Exercise 11
Exercise 12 Exercise 12 Exercise 24 Exercise 12 Exercise 12