Table of contents
- 1. Introduction to Statistics(0)
- 2. Describing Data with Tables and Graphs(0)
- 3. Describing Data Numerically(0)
- 4. Probability(0)
- 5. Binomial Distribution & Discrete Random Variables(0)
- 6. Normal Distribution & Continuous Random Variables(0)
- 7. Sampling Distributions & Confidence Intervals: Mean(0)
- 8. Sampling Distributions & Confidence Intervals: Proportion(0)
- 9. Hypothesis Testing for One Sample(0)
- 10. Hypothesis Testing for Two Samples(0)
- 11. Correlation(0)
- 12. Regression(0)
- 13. Chi-Square Tests & Goodness of Fit(0)
- 14. ANOVA(0)
3. Describing Data Numerically
Mean
3. Describing Data Numerically
Mean: Videos & Practice Problems
Mean Practice Problems
Problem types you want to practice:
Helpful Calculators for These Questions
Average Calculator
Calculate averages and weighted means from any set of numbers
Standard Deviation Calculator
Calculate standard deviation, variance, and mean from data
Confidence Interval Calculator
Calculate confidence intervals for means and proportions with steps
Z-Score Calculator
Calculate z-scores, percentiles, and reverse-solve x, μ, or σ
Mean Median Mode Calculator
Calculate mean, median, and mode from a list of numbers or a frequency table
Linear Regression Calculator
Calculate best-fit line, correlation r, and R² from your data
Central Limit Theorem Calculator
Calculate sample mean probabilities, standard error, and quantiles using CLT