Question

Question = When two coins are tossed what is the probability of getting :
1) Two heads at least
2) At least one head


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Answer 1

The probability of getting two heads is 2/4 or 1/2.

The probability of getting at least one head is also 2/4 or 1/2
because , there is no change in the quantity of heads in the observation

Answer 2

Hey Bro !!

Thanks for the question.

1) At least one head :

When two coins are tossed up, the total outcomes are { HH, HT, TH, TT} = 4

Favourable outcomes = 3

P ( E ) = Favourable outcomes / total outcomes.

= 3/4



Therefore, the probability of getting one head is 3/4

2) At least two heads :

Let E be the event to get at least two heads

Total outcomes = { HH, HT TH TT } = 4

Favourable outcomes = 1

P ( E ) = Favourable outcomes / total outcomes = 1/4

Therefore, Probability of getting two heads is 1/4.