Coins
You flip 1 coin. What is the probability of flipping a head?
The probability of flipping a head is 1/2.
What is the probability of rolling a six on a 6 sided die?
The probability of rolling a six is 1/6.
You have a bag containing 4 yellow, 5 green and 6 orange candies. What is the probability of picking a yellow.
4/15
What is the probability of picking a 7 in a deck of cards?
The probability of getting a 7 in a deck of cards is 1/13.
What is the probability of flipping a head and then another head?
1/2 x 1/2 = 1/4
You roll 2 dice. What is the probability of rolling a 5 and 2? Order does not matter.
2/36= 1/18
You have a bag containing 4 yellow, 5 green and 6 orange candies. What is the probability of picking a green or orange candy?
11/ 15
You draw 1 card from a deck of 52 cards. What is the probability of getting a Jack or a King from a deck of cards?
The probability of getting a jack or a king from a deck of cards is 2/13.
What is the sample space of flipping a coin 2 times?
{HH, HT, TH, TT}
You roll 2 dice. What is the probability of rolling a sum of four?
1/12.
You have a bag containing 4 yellow, 5 green and 6 orange candies. You take two candies without replacement. What is the probability of getting both candies green?
5/15 x 4/ 14 = 2/21
You draw 1 card from a deck of 52 cards. What is the probability it is not a diamond nor a king?
(52 - 13 - 3) / 52 = 9/13
What is the probability of flipping three tails with three coins?
1/8
You roll 2 dice. What is the probability the sum will be 8 or product is 12?
7/36
You have a bag containing 4 yellow, 5 green and 6 orange candies. You take two candies with replacement. What is the probability of getting both candies green?
5/15 x 5/ 15 = 1/9
You draw 2 cards from a deck of 52 cards without replacement. What is the probability at least one of them is a Clubs?
1 - 39/52 x 38/51 = 1 -19/34 = 15/34
You flip 3 coins. What is the probability of flipping at least 2 heads?
Possible outcomes are HHH, THH, HTH, HHT, TTH, THT, HTT, TTT.
4/8 = 1/2
You roll 2 dice. What is the probability the two numbers are different?
5/6
You have a bag containing 4 yellow, 5 green and 6 orange balls. You pick 4 balls without replacement. What is the probability of picking at least 1 green ball?Order does not matter.
1 - P (no green balls) = 1 - 10/15 x 9/14 x 8/13 x 7/12 = 11/13
You draw 2 cards from a deck of 52 cards without replacement. What is the probability both are NOT face cards.
P (no face card) = 1 - 𝑃(2 𝑓𝑎𝑐𝑒 𝑐𝑎𝑟𝑑𝑠) = 1 - 12/ 52 x 11 /51 = 210/ 221