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NCERT Exemplar Solutions Class 10 Mathematics Solutions for Statistics and Probability - Exercise 13.3 in Chapter 13 - Statistics and Probability

Question 49 Statistics and Probability - Exercise 13.3

A coin is tossed two times. Find the probability of getting atmost one head.

Answer:

Total number of possible outcomes if a coin is tossed 2 times (HH), (HT), (TH), (TT) i.e., T(E) = 22 = 4

No. of favourable outcomes of getting atmost one head i.e.,

F(E) = 3

\mathrm{P}(\mathrm{E})=\frac{\mathrm{F}(\mathrm{E})}{\mathrm{T}(\mathrm{E})}=\frac{3}{4}

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