a) Find the probability of rolling at least one six when a die is rolled four times. The number of ways that a non- six can be rolled four times is 54.
coin is fair, what is the probability that the next toss will be a tail? Not knowing whether Rolling four fair dice and getting an even number on all four dice. The events are Getting at least one head when tossing six fair coins. P(at least one.
That's right. The easier approach would be to calculate the chance of not rolling a 6 - that's just 5 6 for the first die, and 5 6 for the second die.