1. What is Probability?

Probability is a measure of the likelihood that an event will occur. It is quantified as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

2. How Does the Calculator Work?

The calculator uses the basic probability formula:

Where:

• Favorable Outcomes — Number of successful outcomes
• Total Outcomes — Total number of possible outcomes

Explanation: The probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

3. Importance of Probability Calculation

Details: Probability calculations are fundamental in statistics, risk assessment, decision making, and many scientific fields. They help quantify uncertainty and predict outcomes.

4. Using the Calculator

Tips: Enter the number of favorable outcomes (must be ≥0) and total possible outcomes (must be ≥1). The favorable outcomes cannot exceed total outcomes.

5. Frequently Asked Questions (FAQ)

Q1: What does a probability of 0.5 mean?
A: A probability of 0.5 means there's a 50% chance of the event occurring - equally likely to happen or not happen.

Q2: How is probability different from odds?
A: Probability is the ratio of favorable outcomes to total outcomes, while odds compare favorable to unfavorable outcomes.

Q3: Can probability be greater than 1?
A: No, probability values always range between 0 and 1 (inclusive). Values outside this range are invalid.

Q4: What's the difference between theoretical and experimental probability?
A: Theoretical probability is based on mathematical calculations, while experimental probability is based on actual experiments or observations.

Q5: How can I convert probability to percentage?
A: Multiply the probability by 100. For example, 0.25 probability = 25% chance.