# Interactive Demonstrations

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•  Understanding statistical concepts can be tricky at times. With our online interactive demonstrations, you can visualize how concepts and formulas work. We currently have 23 interactive demonstration. While most of these correspond to figures in our textbook, we have added extra demonstrations that go beyond the textbook.

You will find the complete set of interactive demonstrations here which include:

• The Galton Board
• The Lottery Simulation
• Power and Effect Size
• The Birthday Problem (Figure 2.9)
• The Boxplot (Figure 2.22)
• Comparing Skewed vs Non-Skewed Distributions (Figure 3.4)
• Understanding Union and Intersection in Probability (Figure 4.8)
• The Coin Toss Simulation (Figure 4.11)
• Exploring Areas Under the Normal Curve (Figure 5.11)
• The Sampling Distribution of Means (Figure 6.3)
• Sample Size and Standard Error (Figure 6.8)
• Distribution of Sample Means (Figure 6.9)
• Understanding the Two-Tailed Hypothesis Test (Figure 7.9)
• Confidence Intervals for the Mean (Figure 8.4)
• Comparing the Two-Tailed Critical Values for z and t (Figure 8.7)
• Single Sample Z and T test for means and proportion
• The Independent Sample T-Test (Figure 10.2)
• The Paired Sample T-Test (Figure 10.3)
• Understanding the Grand Mean in Analysis of Variance (Figure 11.1)
• Exploring Analysis of Variance (Figure 11.2)
• Pearson’s Correlation (Figure 12.1)
• Understanding Regression
• Chi-square Test of Independence (Table 13.3) 