Quick Start
- Visit HeronTool website and locate the "Probability Calculator" tool.
- Select event type: independent events (e.g., rolling dice) or mutually exclusive events (e.g., lottery winning).
- Enter the number of events and each event's probability (as a decimal between 0 and 1 or percentage).
- Click "Calculate" – the tool displays the probability of all events occurring (independent) or any event occurring (mutually exclusive).
Advanced Tips
- For multiple independent events, ensure each probability is multiplied correctly; the tool automatically handles decimals and percentages.
- Use the "Add Event" button to increase the number of events, up to 10.
- To calculate conditional probability, first use the Probability Calculator to get the joint probability, then divide by the known conditional probability (manual calculation required).
FAQ
Q: Can I input probabilities as percentages?
A: Yes, the tool accepts inputs like "50%" or "0.5" and converts automatically.
Q: What does the result mean for mutually exclusive events?
A: It is the probability that at least one event occurs – the sum of all probabilities (if events are exhaustive, the result is 1).
Q: Does the tool support continuous events?
A: Currently it only supports discrete events; continuous probabilities require other statistical tools.
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