Probability
Uttarakhand Board · Class 10 · Mathematics
Quick revision notes for Probability — Uttarakhand Board Class 10 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Basic Concepts and Definitions
- An experiment is any activity that produces a result or outcome
- Sample space is the set of all possible outcomes of an experiment
- An event is a subset of the sample space - a collection of one or more outcomes
Probability Rules and Properties
- Probability of any event lies between 0 and 1 (inclusive)
- Probability of a certain event is 1
- Probability of an impossible event is 0
Problem-Solving Techniques
- Step 1: Identify the experiment and list all possible outcomes (sample space)
- Step 2: Count total number of outcomes
- Step 3: Identify favorable outcomes for the given event
Common Problem Types with Solutions
- Single coin problems: Sample space = {H, T}
- Single die problems: Sample space = {1, 2, 3, 4, 5, 6}
- Card problems: Standard deck has 52 cards
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