80% of all students at a college still need to take another math class. If 5 students are randomly selected, find the probability that a. Exactly 2 of them need to take another math class. b. At most 2 of them need to take another math class. c. At least 3 of them need to take another math class.

Determine if the statement is true or false. If the statement is false, then correct it and make it true. The probability of a couple having four boys is 12 because the probability each time of having a boy is 12.

Find the probability of each event. Rolling a sum of 4 on one roll of three dice

Pet Owners According to the Humane Society, in 2015, 65% of U.S. households owned at least one pet, and 42% of households who did own pets owned at least two. The U.S. Census Bureau tells us that there were 117 million households in 2015. How many households owned at least two pets? Report your answer in millions rounded to two places.

Use the Multiplication Property of Probabilities. If P(AB)=0.3 and P(BA)=0.6, find P(A).