Among a group of 22 stocks, suppose that 11 will perform above average and the other 11 will perform below average. If you pick 4 stocks from this group, what is the probability that all 4 will be above average in performance

If a seed is planted, it has a 95% chance of growing into a healthy plant. If 9 seeds are planted, what is the probability that exactly 2 don't grow?

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.

If a seed is planted, it has a 90% chance of growing into a healthy plant. If 7 seeds are planted, what is the probability that exactly 2 don't grow?

A jar contains 2 red marbles, 8 green marbles, and 5 blue marbles. What is the probability that you draw 3 green marbles in a row if you do replace the marbles after each draw? =  What is the probability that you draw 6 blue marbles in a row if you don't replace the marbles after each draw?

There is a 30% chance it will snow on any one of the next 5 days. What is the chance it will snow at least 2 of those days?