The binomial distribution is _________ symmetrical.
A) always symmetrical
B) sometimes symmetrical, depending on the values of P and Q
C) always symmetrical if N is over 30
D) b and c

Question

Quizplus · Accepted Answer

The binomial distribution is sometimes symmetrical, depending on the values of P and Q. Specifically, if P = Q (i.e. the probability of success and failure are equal), then the distribution will be symmetrical. If P and Q are not equal, then the distribution will be skewed towards the side with the higher probability.

The Binomial Distribution Is _________ Symmetrical