Assignment:
In San Francisco. 30% of workers take public transportation daily ( USA Today December 2 1 .2005).
a. In a sample of 10 workers, what is the probability that exactly three workers take public transportation daily?
b. In a sample of 10 workers. what is the probability that at least three workers take public transportation daily?
Provide complete and step by step solution for the question and show calculations and use formulas.