In the metropolitan area of San Juan, the need of money to buy drugs is the main reason for 75% of the city robberies.
A. Calculate the probability that in the next 5 robberies notified to the San Juan Police Officers, exactly 2 of robberies were due to the need of money to buy drugs.
B. Calculate the probability that in the next 5 robberies notified to the San Juan Police Officers, at the most 3 of robberies were due to the need of money to buy drugs.