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Arithmetic aptitude :: Probability :: General Questions




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31.

Three unbiased coins are tossed. What is the probability of getting at most two heads ?


A) 3/4

B) 1/4

C) 3/8

D) 7/8



32.

Three unbiased coins are tossed. What is the probability of getting at least 2 heads ?


A) 1/4

B) 1/2

C) 1/3

D) 1/8



33.

In a simultaneous throw of two coins, the probability of getting at least one head is :


A) 1/2

B) 1/3

C) 2/3

D) 3/4



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