Probability — Formula Sheet
ICSE · Class 8 · Mathematics
13 formulas from Probability (ICSE Class 8 Mathematics) on one page, grouped by topic. Part of the ICSE Class 8 Mathematics syllabus.
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Formulas and Key Relations
Core Ideas and Definitions
P(E) = m/n
P = Number of favourable outcomes / Total number of outcomes
Standard Outcome Counts
Coin tossed once: 2 outcomes
Coin tossed twice: 4 outcomes
Coin tossed three times: 8 outcomes
Die thrown once: 6 outcomes
Die thrown twice: 36 outcomes
Solved Probability Patterns
P(getting an even number) = 3/6 = 1/2
P(getting a multiple of 3) = 2/6 = 1/3
P(not a multiple of 3) = 4/6 = 2/3
P(no tail) = 1/4
P(two tails) = 1/4
P(E) = m/n.
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