Question

two coins are tossed simultaneously, then the probability of getting at least one head is : *

1/4

1/2

3/4

0

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Answer 1

Answer:

1/2..

.......................

Answer 2

step by step explaination:

ANSWER

When two coins are tossed the results are (HH,HT,TH,TT)

Total no. of outcomes =4

1) Exactly one head = only two cases are (HT,TH)

=

4

2

=

2

1

2) At least one tail = There are three cases (HT,TH,TT)

=

4

3

3) No. tail = only one case (HH) =

4

1

4) Atmost one head =three cases (HT,TH,TT)

=

4

3.