Cards
There are 3 blue cards, 4 yellow cards and 1 green card in a bag. Krish starts picking cards out of the bag and putting it back into the bag. What is the probability of getting a green card?
1/8
On a 6 sided die, what is the probability that Luca rolls a 3?
1/6
A teacher has 4 prizes, a pencil, a bracelet, a mini game board and an eraser. What is the probability that a student picks a bracelet?
1/4 or 0.25%
1/6
Probability experiment in which the results of each trial do not depend on the results of the previous trials (picking a marble out of the bag and replacing it each time)
Independent Probability
There are 2 white cards, 3 red cards, 5 black cards and 4 blue cards in a bag. Jimmy wants to get a blue card with putting the cards back in the bag. What is the probability he gets the color he wants?
4/14 or 2/7
On an 8 sided dice, what is the probability of Leo rolling an odd number?
4/8 or 1/2
A teacher has 8 prizes which are 2 bracelets, 4 erasers and 2 pencils. The teacher allows Brayden to pick 3 out of the 8 prizes. What is the probability of him picking both bracelets and 1 eraser?
3/8
The music festival happens a random month every year. What is the probability of the music festival happening in July?
1/12
Probability experiment in which the results of each trial depend on/are affected by the results of the previous trials (picking a marble out of the bag and not replacing it each time)
Dependent Probability
Giannis has a bag full of cards. There are 4 #10 cards, 2 #9 cards 6 #2 cards and 10 #5 cards. He wants to get a #10 card and then a #5 card without putting the cards back in the bag. What is the probability that he gets it?
4/22, 10/21
On a 8 sided dice, what is the probability that ty rolls a 6 or higher?
3/8
There are 12 prizes in a box and a student had to pick a random one. There is 5 bracelets, 2 erasers, 3 pencils and 2 game boards. Whats the probability that the student gets an eraser.
2/12
Whats the probability of Brayden's birthday being in January,February or October out of all 12 months?
3/12 or 1/4
Events that include more than one experiment or type of trial (e.g. what is the probability of spinning a spinner and landing on red, and then rolling a die landing on an even number? Or what is the probability of picking a sock out of a drawer twice, and getting striped socks both times?)
Compound Events
Lebron James is playing UNO with Bronny and Bryce. There are 5 wild cards 3 reverse cards and 9 swap cards. Lebron wants to get a wildcard and a swap card without replacing the card. What is the probability of that happening.
5/17, 9/16
On a 20 sided dice, what is the probability that Timmy rolls an even number?
10/20, or 1/2
There are 100 pencils in a box. 25 blue ones, 26 green ones 24 red ones and 25 yellow ones. A student gets to randomly pick two pencils. Whats the probability he gets a blue pencil and then a red.
25/100, 24/99
In one of the next two years a special event will happen. What is the probability it happens on March of the 2nd year?
1/24
A way to model random events to gain insight on the real world and model probability experiments that you cannot actually conduct
Simulation
There is a bag with 128 FIFA cards, 206 MLB cards, 159 NFL cards and 302 NBA cards. Steph 👑 starts to pick cards out of the bag and doesn't put them back in. What is the probability of him getting an NBA card, then a MLB card, then an NBA card and then a FIFA card.
302/795, 206/794, 301/793, 128/792
Jimmy rolls a 20 sided dice. What is the probability of him getting a 1, 3, 9, 6, 20 and 18?
6/20
There are 500 prizes in a box, 200 pencils, 3 erasers, 197 mini posters and 100 candies. Whats the probability that Jimmy picks one pencil then a mini poster then a candy and then another pencil.
200/500, 197/499, 100/498, 199/497
In one of the next 12 years there will be a special month where all the zoo animals will be let out. Whats the probability that it will be a july or october of any of the 12 years?
24/144
A probability experiment in which each outcome has an unequal chance of occurring
Non-equal probability