Dice
Coins
Deck of Cards
Expected Frequency
Basic operations
100

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

The probability of rolling a six is 1/6.

100

What is the probability of flipping a head?

The probability of flipping a head is 1/2.

100

What is the probability of picking a four in a deck of cards?

The probability of getting a four in a deck of cards is 1/13.

100

What is the expected number of "heads" you will get if you flip a coin 100 times?

50

100

44 + 66

110

200

What is the probability of rolling a 2 on a 6 sided die?

What is the probability of rolling a 2 on a dice?

The probability of rolling a 2 on a is 1/6.

200

What is the probability of flipping a tail?

The probability of flipping a tail is 1/2.

200

What is the probability of getting a six from a deck of cards?

The probability of getting a six from a deck of cards is 1/13.

200

If you roll 2 dice, 36 times, how many times would you expect to get a "double 1"?

1

200

120 - 89

31

300

What is the probability of rolling an even number on a 6 sided die?

The probability of rolling an even number is 1/2.

300

What is the probability to flip two tails with two coins?

The probability of flipping two tails with two coins is 1/2.

300

What is the probability of getting a jack from a deck of cards?

The probability of getting a jack from a deck of cards is 1/13.

300

If you pick a card at random from a regular deck, then put it back, re-shuffle and re-draw 40 times; how many "diamonds" would you expect to get?

1/4 x 40 = 10

300

45 X 4

180

400

What is the probability of rolling a sum of four with two 6 sided dice?

The probability of rolling a sum of four with two dice 1/12.

400

What is the probability of flipping three heads with three coins?

The probability of getting three heads with flipping three coins is 1/2.

400

What is the probability of getting a nine from a deck of cards?

The probability of getting a nine from a deck of cards is 1/13.

400

If you Roll a dice 36 times, how many times should you expect to roll a "6"?

6

400

678 / 3

226

500

What is the probability of rolling a one with two 6 sided dice?

The probability of rolling a sum of one with two dice is 0/36.

500

What is the probability of flipping a head and a tail with two coins?

The probability of flipping a heads and tails with 2 coins is 1/2.

500

What is the  probability of getting a jack and a king from a deck of cards?

The probability of getting a jack and a king from a deck of cards is 2/13.

500

I have a hat with marbles.  4 green, 3 red, 1 blue.  I choose a marble at random, record it and put it back 16 times.  How many "greens" should I expect?

8

500

2(2+3) + 9 x 5 = 

50