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A coin is thrown 3 times in the air .What is the probability that one head is followed by two tails ?

A 1/2

B `1/4

C 1/8

D 5/6

Solution

Correct Answer: Option C

মোট নমুনা ক্ষেত্র =8 টি (HHH,HHT,HTH,HTT,THH,THT,TTH,TTT)
অতএব ,প্রথমে H ও পরে 2 টি আসার সম্ভাবনা 1/8

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