In a family with 2 children, the probability that all the children are girls is approximately 0.25 . In a random sample of 1000 families with 2 children, what is the approximate probability that 230 or fewer will have 2 girls? Approximate a binomial distribution with a normal distribution.
^(3)
Click the icon to view the area under the standard normal curve table. The probability that 230 or fewer families will have 2 girls is (Round to four decimal places as needed.)