Probability — Formula Sheet
Maharashtra Board · Class 10 · Mathematics
7 formulas from Probability (Maharashtra Board Class 10 Mathematics) on one page, grouped by topic. Covers Random Experiment and Outcome, Sample Space.
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Formulas and Key Relations
1. Core Ideas
P(A) = n(A) / n(S)
2. Sample Space
n(S) = number of elements in sample space
4. Event and Favourable Outcomes
A ⊆ S
n(A) = number of favourable outcomes
Probability of an Event
For a random experiment with sample space S and event A, probability of A is P(A) = n(A)/n(S).
Key relations
For one coin tossed, S = {H, T} and n(S) = 2.
For three coins tossed, S = {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT} and n(S) = 8.
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