Descriptive Practice Set
One exam-style dataset that lets you practise import, summaries, logical filters, percentages, and plots.
Open Descriptive Practice SetChoose a practice set, exercise list, or tool
Pick one page, work through the tasks step by step, and use the feedback to check your thinking.
One exam-style dataset that lets you practise import, summaries, logical filters, percentages, and plots.
Open Descriptive Practice SetA cafe wait-time case for comparing two groups, choosing the right test, and reading the output carefully.
Open Inference Practice SetPractise distribution questions by first choosing the distribution and then choosing the right function.
Open List 3Practise sampling distributions, confidence intervals, and sample-size questions with one clear result per task.
Open List 4Practise hypothesis tests, p-values, and decisions in a step-by-step way.
Open List 5Practise paired differences, difference in proportions, and variance tests one step at a time.
Open List 6Practise chi-square goodness-of-fit, independence tests, and Jarque-Bera normality checks.
Open List 7Practise correlation, simple regression, multiple regression, and model-fit comparisons.
Open List 8Practise regression significance, residual checks, dummy variables, and interaction models.
Open List 9Practise the technical routine once: download the question PDF and data file, answer the question, save your work as a PDF, and upload it.
Open Exam Practice RunA simple choose-the-function guide for descriptive tasks, tests, chi-square questions, and regression questions.
Open Exam R CheatsheetUse sliders and inputs to see what d, p, q, and r do for the main distributions.