Q1
What is the probability formula?
AFavourable outcomes ÷ total outcomes
BTotal outcomes ÷ favourable outcomes
CFavourable + total outcomes
DFavourable - total outcomes
SSCClass 10 (SSC)Mathematics - Algebra (बीजगणित)Ch 5 · Topic 2
Practice and Revision - Probability
Let us practise and revise what we learned about probability. Probability quantifies the likelihood of events occurring, essential for solvi
Core concept
The probability of an event is calculated as favourable outcomes divided by total possible outcomes, ranging from 0 (impossible) to 1 (certain).
How it works
A sample space lists all possible outcomes of an experiment, essential for correctly calculating probabilities.
Why it matters
For mutually exclusive events (cannot happen together), the probability of either occurring is the sum of their individual probabilities.
Key detail
Understanding probability helps us make informed decisions and predictions in various real-life situations, from games to risk assessment.
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Quick notes
• Probability = favourable outcomes ÷ total outcomes.
• Range: 0 (impossible) to 1 (certain).
• Sample space: all possible outcomes.
• Essential for correct probability calculation.
• Mutually exclusive events: can't happen together.
• Their combined probability: sum of individual.
• Probability aids informed decisions.
• Applications: games, risk assessment.