What is the Probability a couple has two children at least one of them is a boy. Assume that the boys and girls are equally likely.

In Alex's drawer she has 11 pairs of socks, 4 of which are white, and 15 tee shirts, 2 of which are white. The probability of choosing a white pair of socks is    The probability of choosing a white tee shirt is    The probability of both being white is

A physics class has 50 students. Of​ these,17 students are physics majors and 13 students are female. Of the physics​ majors,four are female. Find the probability that a randomly selected student is female or a physics major. The probability that a randomly selected student is female or a physics major is=

A couple has 2 children. What is the probability that both are girls if the older of the two is a girl?

Ali has taken two books with him for holiday. The probability of liking the first book is 0.5, the probability of liking the second book is 0.4, the probability of liking both books is 0.3. What is the probability that Ali does not like both books?

Frank and Joe are planning to have 3 children. What is the probability that Frank and Joe will have at least 1 boy?

Find the probability that either event A or B occurs if the chance of A occurring is 0.5,the chances of B occurring is 0.3, and events A and B are independent.

Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of exactly three boys in seven births.

A sculpted needs to make 3 wood sculptures to exhibit at an art gallery. There is a probability of 0.80 that every piece of wood he carved will be good enough to be a part of the exhibit. What is the probability that he needs to carve 5 or less pieces of wood in order to produce 3 good wood sculptures for the art gallery?

Money bills are frequently printed with defects. The probability that a bill's front side has a defect is 2 percent, the probability that a bill's back side has a defect is 4 percent, and the probability that a bill has defects on both sides is 1 percent. What is the probability that a bill will have a defect on the front, given that it has a defect on its back?