nd the probability that if 4 sticks are rarndomly arranged in a row, they will be arranged in order of increasing size.

A ball is chosen at random out of a bowl that contains 3 red balls, 2 green balls, and 1 blue ball, and then a selection is made from the remaining 5 balls. Find the probability that a red ball and a green ball are selected.

At the beginning of the semester, each of the 5 students in a class selected a nickname. Unfortunately, the instructor forgot how the given names of {A, B, C, D, E} matched up to their nicknames:{a, b, c, d, e}. Determine the probability that the instructor got none of the five matches correct.

Suppose a jar contains 9 red marbles and 37 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.