An Unbiased coin is tossed 4 times. What is the Probability of getting (i) 3 heads
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
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
Since each of ht 4 flips has 2 possible outcomes (heads or tails), there are 24=1624=16 outcomes in the sample space. At least 3 heads means 3 or 4 heads.
(43)=4(43)=4 ways to get 3 heads. (44)=1(44)=1 way to get 4 heads and 4+116=5164+116=516.