Question

two unbiased coins are tossed simultaneously find probability of getting
at least one head ,
at most one head,
No head

Answer 1

probability of getting:
a) at least one head=3/4
b) at most one head=1/2
c) no head=1/4

Answer 2

The probability of getting a). At least one head = 3/4 b) At Most one head = 1/2

c) No head = 1/4

Step-by-step explanation:

a). At least one head

Total number of possible cases = 4

 Favorable outcomes = 3

Thus, the possible outcomes would be HH, TH, HT

∴ probability = 3/4

b). At most one head

Total number of cases = 4

Favorable outcomes = 2

Thus, probability = 1/2

c). No head

Total cases = 4

Favorable outcomes = 1

Probability = 1/4

Learn more: probability

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