The formulas for the mean and standard deviation are m n p and s n p q. S np 1-p It turns out that if n is sufficiently large then we can actually use the normal distribution to approximate the probabilities related to the binomial distribution. The problem is that the binomial distribution is a discrete probability distribution whereas the normal distribution is a continuous distribution.
It could become quite confusing if the binomial formula has to be used over and over again.
The problem is that the binomial distribution is a discrete probability distribution whereas the normal distribution is a continuous distribution. Suppose 16 Coins Are Tossed Find The Probability Of Getting The Following Result Using The Binomial Probability Formula And The Normal Curve Approximation. This is known as the normal approximation to the binomial. Normal Approximation Lesson Examples Video 47 min.