An Unbiased coin is tossed 4 times. What is the Probability of getting (i) 3 heads

Answers (3)

Given that an unbiased coin is tossed 4 times.

find the probability of getting 3 head

solution:

total number of events = 2^4 =16

Number of ways of getting 3 heads = \frac{4!}{1! 3!} = 4

probability =4/16 =1/4

 

Given that an unbiased coin is tossed 4 times.

 

find the probability of getting 3 head

 

solution:

 

total number of events =  =16

 

Number of ways of getting 3 heads = 

 

probability =4/16 =1/4

 

 

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