Answer Show Hint: If 3 coins are tossed then sample space will be S= {HHH, HHT, HTH, HTT, THH, TTH, THT, TTT}. To find the probability of an event use the formula, P(event) = (No. of favourable outcomes) / (Total no. of possible outcomes). Complete step-by-step answer: P (getting at least one head) $ = \dfrac{7}{8}$ P (getting at most two head) $ = \dfrac{7}{8}$ P (getting no tails) $ = \dfrac{1}{8}$ Note: Whenever such types of questions appear, then always write the sample space of all outcomes, then for each problem type write the favourable outcomes for that given event. And then solve and find the answers to each part.
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Popular Chapters by Class: Class 6 AlgebraBasic Geometrical IdeasData HandlingDecimalsFractions Class 7 Algebraic ExpressionsComparing QuantitiesCongruence of TrianglesData HandlingExponents and Powers Class 8 Algebraic Expressions and IdentitiesComparing QuantitiesCubes and Cube RootsData HandlingDirect and Inverse Proportions Class 9 Areas of Parallelograms and TrianglesCirclesCoordinate GeometryHerons FormulaIntroduction to Euclids Geometry Class 10 Areas Related to CirclesArithmetic ProgressionsCirclesCoordinate GeometryIntroduction to Trigonometry Class 11 Binomial TheoremComplex Numbers and Quadratic EquationsConic SectionsIntroduction to Three Dimensional GeometryLimits and Derivatives Class 12 Application of DerivativesApplication of IntegralsContinuity and DifferentiabilityDeterminantsDifferential Equations Privacy PolicyTerms And Conditions Disclosure PolicyContact Us What is the probability of getting 2 heads when 3 coins are tossed?Now, for exactly two heads, the favorable outcome is (THH, HHT, HTH). We can say that the total number of favorable outcomes is 3. ∴ The probability of getting exactly two heads is 3/8.
When 3 fair coins are tossed together what is the probability of getting 2 tails?P(exactly two tails)=83.
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