In a class with 40 students, 24 are girls and 16 are boys. In the final exam, 2 girls and 2 boys achieved grade A. Calculate the probability of, in a random selection of two people, a girl or a student with student grade A being selected.

The average number of field mice per acre in a 5-acre wheat field is estimated to be 6. Find the probability that fewer than 4 field mice are found on 3 of the next 4 acres inspected.

In the US Congress, the Senate consists of 13 women and 87 men. The President randomly selects members of the Senate to sit in on his meetings. What is the probability of selecting 3 consecutive women? After selecting each person, you do not place them back in the selection pool.

In a bag there are 7 blue, 3 yellow, and 4 pink markers. If five markers are selected at random and the color noted, find the probability that none are yellow given that none are pink.

Out of 27 students in a class, 8 major in Science. Find the probability that two randomly selected students are both Science major. Answer with 4 decimal places or a reduced fraction.

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 two boys in ten births. Round the answer to the nearest thousandth.

Among a student group 51% use Google Chrome, 20% Internet Explorer, 10% Firefox, 5% Mozilla, and the rest use Safari. What is the probability that you need to pick 7 students to find 2 students using Google Chrome? Report answer to 3 decimals.

A bag contains an equal number of pieces of candy for 6 candy colors. What is the probability of drawing either a yellow candy or a blue candy when drawing a single piece of candy from the bag?