1. A bucket contains 20 red checkers and 20 black ones
A bucket contains 20 red checkers and 20 black ones. Without looking, draw two. If both are red, place them in the red pile; if both are black, place them in the black pile; if one is red and one is black, place them in the mixed pile. Repeat 19 times. What is the probability that the red pile and black pile have the same number of checkers?

2. Carol and Evan are playing. with the two spinners
Carol and Evan are playing with the two spinners Both are spun at the same time.
Carol wins if the letters match when the spinners stop; otherwise, Evan wins.
What is the probability that Carol wins?

3. Two rival teams, the Gryphons and the Unicorns, play each other 5 times each season. This year they’re not evenly matched, with the odds of the Gryphons winning a game pegged as 3 to 1 at the beginning of the season. If these odds remain unchanged during the season, what is the probability the Gryphons win exactly 4 of the 5 games?

4. What is the probability that a single card drawn from an ordinary 52-card deck will be neither a club nor a jack?

5. There are 24 four-digit numbers that can be formed using each of the digits 1, 2, 5, and 7 exactly once in each number. If one of those 24 numbers is randomly selected, what is the probability that it is a prime number?

6. Spinner A is divided into 6 equal sectors, and spinner B is divided into 4 equal sectors.
If the needle on each spinner is spun once, what is the probability that the sum of the resulting numbers is even?

7. Answers
#3 Spinners - Match #5 Rival Teams

8. Answers #28 Neither Jack nor Club #25 Primes
0. Every 4-digit number formed will be divisible by 2 and/or 3.
#27 Spinners – add to even