Question

of all pre kindergarten children 56% are enrolled in pre school. if 500 random children are selected what is the probability that 250 are enrolled in pre school?

Answer 1

This is the case for normal approximation to binomial

The following information about the Binomial distribution is provided:

The population proportion of success is p = 0.56 , and the sample size is n= 500n . We need to compute

The population mean is computed as:

and the population standard deviation is computed as:

Therefore, we get that