A six-sided number cube is rolled five times, X is the number of times an even number is rolled. Which statement is true about this situation?
1 Answer
Apr 15, 2018
The first statement is correct.
Explanation:
Let's first see if there is a binomial distribution, then if there is let's set it up.
A binomial distribution is one where there are 2 possible outcomes in a given set of trials (say even and odd results on a die), the probability of success is fixed (say like
A general statement about binomial distributions is:
with X being the number of times an even is rolled, we have:
The right statement is the first one - X has a binomial distribution with P(success)=0.5 and trials = 5.