Interactive Demo
Sampling the Orchard Interactive
Sampling the Orchard Interactive is a free, interactive learning demo from the AP Statistics course on Lykke. It helps you build intuition for Sampling Methods (SRS, Stratified, Cluster), Sources of Bias (Nonresponse, Undercoverage), Observational Studies vs. Experiments, Principles of Experimental Design. Play with it directly in your browser — it features 1 button. This demo lives in the “Unit 3: Collecting Data” section of the course.

How to use this demo
- Use the “COLLECT DATA” button to trigger actions or reset the demo.
- Experiment freely — there's nothing to break, and every change is reversible.
What you'll explore
- Sampling Methods (SRS, Stratified, Cluster)
- Sources of Bias (Nonresponse, Undercoverage)
- Observational Studies vs. Experiments
- Principles of Experimental Design
- Randomization and Blinding
- Confounding Variables
Frequently asked questions
What does the Sampling the Orchard Interactive demo do?
Sampling the Orchard Interactive Field Sampler The river (left) provides more water. Simple Random Pure chance, any tree possible. Sampling the Orchard Interactive lets you explore this hands-on instead of only reading about it.
What AP Statistics concept does Sampling the Orchard Interactive teach?
Understand the methods for obtaining data, focusing on the critical differences between observational studies and controlled experiments. It focuses on Sampling Methods (SRS, Stratified, Cluster), Sources of Bias (Nonresponse, Undercoverage), Observational Studies vs. Experiments, Principles of Experimental Design, Randomization and Blinding, Confounding Variables from the “Unit 3: Collecting Data” section.
What can I control in Sampling the Orchard Interactive?
The “COLLECT DATA” button run actions or reset the demo. Every change updates the visualization in real time, so you can see exactly how each variable affects the outcome.
How does Sampling the Orchard Interactive fit into the AP Statistics course?
AP Statistics introduces students to the major concepts and tools for collecting, analyzing, and drawing conclusions from data. The course is equivalent to a one-semester introductory college statistics course and focus… This demo is the interactive piece for the “Unit 3: Collecting Data” section. Open the full AP Statistics course wiki at https://www.getlykke.com/explore/public/ap-statistics-70553ac9-70f9-422d-b8b6-c328240d85c1 for notes, flashcards, quizzes and the other demos.
What will I understand better after using Sampling the Orchard Interactive?
You'll build intuition for Sampling Methods (SRS, Stratified, Cluster), Sources of Bias (Nonresponse, Undercoverage), Observational Studies vs. Experiments, Principles of Experimental Design, Randomization and Blinding, Confounding Variables — and, crucially, see how they behave when you change the inputs, which is hard to get from a textbook or lecture on AP Statistics alone.
From the AP Statistics course
This interactive demo is part of the Unit 3: Collecting Data section. Explore the full AP Statistics course wiki on Lykke — with notes, flashcards, quizzes and more interactive demos.
Open the AP Statistics course →