Question

If a binomial event has a probability of success of 0.5, how many successes would you expect out of 2000 trials

A.1000
B.600
C.1800
D.1400

Answer 1

1000

Explanation:

a binomial event only has two possible outcomes

P(success) = .5

Multiply the probability of success by the number of trials

.5*2000 =1000