Probability

Combined

100

You flip a coin and roll a die. What is the probability of getting heads and a 6?

1/2 * 1/6 = 1/12

200

You flip a coin and roll a four-sided die. What is the probability that you get heads and an even number?

1/2 * 1/2 = 1/4

300

You draw a card and roll a die. What is the probability of getting an ace and an even number?

4/52 * 1/2 = 4/104

400

You roll a six-sided die and an eight-sided die. What is the probability that you get the same number on both?

6/48 or 3/24

500

You roll a four-sided die and draw a card form a deck of cards. What is the probability that you get the same number on both?

16/208

Dice

100

What is the probability you will roll a number 6 on a six sided die?

1/6

200

What is the probability you will roll an odd number on a six sided die?

3/6 or 1/2

300

What is the probability of rolling a 6 on a twelve sided die?

1/12

400

What is the probability of rolling a 4 or an 11 on a twelve sided die?

2/12 or 1/6

500

What is the probability of rolling 2 normal dice and getting a sum of 5?

4/36 or 1/9.  Possible ways: 4+1, 3+2,  1+4, 2+3

Coins

100

What is the probability that a coin will land on heads?

1/2

200

When you flip two coins, how many possible results are there?

4

300

You flip two coins. What is the probability that both coins come up heads?

1/4

400

You flip two coins. What is the probability that you get one heads and one tails?

2/4 or 1/2.

500

If you flip a coin 300 times, about how many times would you expect to get heads?

~150

Cards

100

What is the probability of drawing the King of Diamonds from a deck of 52 cards?

1/52

200

What is the probability of drawing a 4 out of a deck of 52 cards?

4/52 or 1/13

300

What is the probability of drawing a 5 or a 10 from a deck of 52 cards?

8/52 or 2/13

400

What is the probability of drawing a club or a heart from a deck of cards containing 52 cards?

26/52 or 1/2

500

You draw a card, then put it back and shuffle the deck before drawing again. Repeat until you've draw four cards. What is the probability that you will draw four spades in a row?

1/4 * 1/4 * 1/4 * 1/4 = 1/256

Marbles

100

What is the probability of drawing a blue marble from a bag containing 5 blue marbles and 2 yellow marbles?

5/7

200

What is the probability of drawing a yellow marble from a bag containing 2 blue, 5 green, and 6 orange marbles?

0 or not possible

300

What is the probability of drawing a red or a blue marble from a bag containing 12 blue, 5 yellow, 6 orange, and 3 red marbles?

15/26

400

A bag contains 2 blue and 4 green marbles. Tyler draws first and gets a green marble. He then places the marble back into the bag before Kayla draws. What is the probability that Kayla will draw a blue marble?

2/6 or 1/3

500

A bag contains 4 blue, 3 red, and 2 yellow marbles. If Joe draws a marble, puts it back in the bag, and then Ally draws a marble, what is the probability that both people will draw a blue marble?

4/9 * 4/9 = 16/81