Question

If three coins are tossed simultaneously then the probability of getting at least two heads is

Answer 1

Answer

Sample Space = 8

Sample Space:

HHH

HHT

HTT

TTT

THH

TTH

THT

HTH

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Probab for 2 heads = 4/8 = 1/2

Answer 2

Answer: 1/2

Step by step explanation:

A coin has two sides. Heads ( H ) and Tails ( T ).

If we toss three coins, then all possible outcomes are:

(H, H, H) , (H, H, T) , (H, T, H) , (T, H, H), (H, T, T), (T, H, T) , (T, T, H) and (T, T, T)

Thus, possible outcomes = 8

Thus, Number of possible outcomes ( atleast 2 heads ) = 4

↪️ (H, H, H) , (H, H, T) , (H, T, H) and (T, H, H).

Thus,

Probability of getting at least 2 heads = Favourable outcomes/ Total possible outcomes

= 4/8

= 1/2

Thus, The probability of getting at least two heads is 1/2.