Map concurrent tasks, delays, and outcomes with clarity. Compare row, column, and conditional chances instantly. Turn uncertainty into smarter daily planning and scheduling decisions.
Use the matrix to model how two scheduling variables happen together.
This sample shows how task type and completion status may occur together during a workday.
| Task State | On Time | Slight Delay | Major Delay |
|---|---|---|---|
| Focused Work | 0.18 | 0.07 | 0.03 |
| Meetings | 0.12 | 0.16 | 0.07 |
| 0.11 | 0.14 | 0.12 |
Enter row labels for one scheduling variable and column labels for the second. Paste the joint probability matrix so every row aligns with every label. Add optional numeric values when you want expected values, covariance, and correlation. Submit to view marginals, conditional tables, summary metrics, and the heatmap.
Use auto-normalize when your entries are raw counts or weights instead of finished probabilities. The export buttons create a CSV snapshot and a PDF report of the results. The example loader quickly restores a working sample for testing or demonstrations.
It shows the probability that two events happen together. In time management, one axis can represent task type while the other represents completion status, delay band, or time block.
A full joint distribution covers every possible paired outcome. Because one of those outcomes must occur, the total probability across all cells must equal 1.
Yes. Turn on auto-normalize and enter nonnegative counts or weights. The calculator scales them into valid probabilities before computing marginals, conditional distributions, and graph output.
Marginals are the totals along each row or column. They show the standalone probability of one variable after ignoring the other variable’s categories.
Enter numeric values when the categories also represent measurable amounts. That lets the tool calculate expected values, variance, covariance, and correlation from the distribution.
They answer questions like, “Given a meeting-heavy day, what is the chance of a major delay?” That makes bottlenecks and schedule risks easier to spot.
Zero cells are allowed. They simply mean a paired outcome never happens or was not observed. The calculator safely skips impossible terms in entropy and information calculations.
They include the summary metrics, the full joint table with marginals, and both conditional tables. This makes sharing, reporting, or archiving your analysis straightforward.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.