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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.

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 25 families out of 780 had twins?

b) What is the probability that no more than 20 families had twins?

Round your answers to the nearest thousandths place.

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