# Probability of Twin Births

Based upon statistical studies it has been found that 3.32% of all births in the United States will result in twins being born. If 17,300 births are selected at random what is the probability that:

a) at most 600 of them will result in twins being born?

b) between 525 and 550 of them (inclusive) will result in twins being born?

https://brainmass.com/math/probability/probability-of-twin-births-544876

#### Solution Summary

The solution provides step by step method for the calculation of probability using the Z score. Formula for the calculation and Interpretations of the results are also included.

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