Probability PYQs

Probability is a measure of how likely it is that a particular event will occur. It is expressed as a number between 0 and 1, where 0 means it is impossible and 1 means it is certain.

Key concepts in probability:

Experiment: A procedure that results in an outcome.
Outcome: A possible result of an experiment.
Sample space: The set of all possible outcomes of an experiment.
Event: A subset of the sample space.
Types of probability:

Theoretical probability: Based on reasoning and analysis, without conducting experiments.
Experimental probability: Based on the results of actual experiments.
Probability rules:

Addition rule: For mutually exclusive events A and B, P(A or B) = P(A) + P(B).
Multiplication rule: For independent events A and B, P(A and B) = P(A) * P(B).
Conditional probability: The probability of event B occurring given that event A has already occurred. P(B|A) = P(A and B) / P(A).
Would you like to explore a specific probability concept or problem? I can help with topics like:

Calculating probabilities
Understanding probability distributions
Applying probability to real-world situations
Please feel free to ask any questions you have.