Given that X is a binomial random variable, the binomial probability P(X = x) is approximated by the area under a normal curve between:
A) x - 0.5 and 0.0
B) 0.0 and x + 0.5
C) 1 - x and 1 + x
D) x - 0.5 and x + 0.5
E) 0.0 and x + 1

Question

Quizplus · Accepted Answer

According to the normal approximation to the binomial distribution, P(X = x) can be approximated by the area under the normal curve between x - 0.5 and x + 0.5, with a continuity correction. Therefore, the best choice is D.

Given That X Is a Binomial Random Variable, the Binomial