There are 2^5 (2*2*2*2*2), or 32, possible outcomes of tossing a coin 5 times. Only one of those outcomes does not contain any tails. This leaves us with 31/32, or 97% chance of at least one toss coming up tails.
It is 0.3125
It is 1/8 = 0.125
It is (1/2)3 = 1/8 or 0.125
3 out of 6
There are 23 or 8 possibilities; one is HHH. So, probability of HHH is 1/8 or 0.125.
The probability is 0.998
The probability of tossing a coin 9 times and getting at least one tail is: P(9 times, at least 1 tail) = 1 - P(9 heads) = 1 - (0.50)9 = 0.9980... ≈ 99.8%
The probability is 5/16.
The probability of tossing a coin 5 times and getting all tails is:P(TTTTT) = (1/2)5 = 0.03125 ≈ 3.13%
The probability of getting 3 is virtually 1. It is 1.76 septillionths less than 1.
It is 0.3125
Since each event is independent, the probability remains at 0.5.
It is 60/100 = 0.6
one out of 5 or 2 out of 10
Because a coin is two-sided, 50/50 is always the probability. Unless your coin lands on the grass (on the lawn), then it will probably land on its edge.
It is 1/8 = 0.125
1/2 chance of getting heads or tails 5 times 1/10