any help would be greatly appreciated

The probability of getting twins is about 3%. In 2020, approximately 780 families had a baby/babies in Brownsville, Texas. Each birth is independent of others. Use the calculator options binompdf or binomcdf to find the probability of success in following questions: a) What is the probability that exactly 16 families out of 780 had twins? b) What is the probability that less than 18 families had twins? Round your answers to the nearest thousandths place