Which of the following is NOT an assumption of the binomial distribution? A. The trials are independent. B. The expected value is a whole number. C. Random variable X is discrete.
The expected value is n × p. A simple example shows us that the expected value does not have to be a whole number: n = 5, p = 0.5, n × p = 2.5. The other conditions are necessary for the binomial distribution.
