Live tool
01 / Chapter labs
Business Statistics Labs
Practice study design, inference, group comparisons, and categorical risk through four chapter-specific, browser-local evidence labs.
Interactive course tools
Quantitative ideas, made visible.
Explore optimization, probability, regression, and sampling with focused tools that turn formulas into experiments you can see, change, and discuss.
Optimize
Measure
Decide
From model structure to evidence-backed decisions.
Tool directory
Explore the tool directory.
Every tool runs directly in your browser with a ready-to-use starting example. Nothing to install and no account required.
BUS-2150 · Business Statistics
BUS-2150: Find patterns inside variation.
Use focused chapter labs for complete evidence workflows, or open a general-purpose explorer to investigate a model directly.
Live tool
02 / Probability
Normal Area Explorer
Drag z-score cutoffs and watch shaded probability regions respond across left, right, between, and two-tail questions.
Live tool
03 / Simulation
Sampling Distribution Explorer
Draw unusual populations, follow individual samples, and watch the distribution of sample means take shape through repeated simulation.
Live tool
04 / Relationships
Linear Regression Studio
Build datasets, compare your line with least squares, and inspect residual, ANOVA, extrapolation, and variance diagnostics.
Live tool
05 / Investigation
Statistical Investigation Studio
Practice the complete evidence workflow and diagnose hidden data-quality, model, and interpretation challenges across the course.
BUS-3150 · Operations Analysis
BUS-3150: Model decisions under constraints.
Build a model, see its geometry, and test how the best decision changes.
Live tool
01 / 2D optimization
2D Linear Programming Explorer
Add constraints, reveal the feasible polygon, and drag the objective function to discover the optimum rather than merely calculate it.
Live tool
02 / 3D optimization
3D Linear Programming Explorer
Build three-variable constraints, rotate the feasible solid, and move the objective plane to see how an optimum emerges in three dimensions.
Live tool
03 / Decision labs
Operations Decision Labs
Move from prediction to model to recommendation in four browser-local labs: LP sensitivity, network and integer choices, simulation risk, and forecasting carried into inventory.