Methods
What do you solve probability with? Decimals/fractions or whole numbers out of ten or out of hundred?
Decimals/fractions
What is the word for the amount of pulls/rolls you get?
Events
What is compound probability?
Compound probability is the probability that two or more independent events will occur
If I am flipping a fair coin to see if it will land on heads, is this an independent or dependent situation?
Independent
If I am drawing a card out of a deck to get the number ten, is this an independent or dependent probability?
Dependent
What is the best diagram to solve problems with events and to find the probability of the outcome?
Tree Diagrams
What is the word for the chance of a certain event occurring?
Probability
If a bag contains 3 marbles, 1 is white and 2 are black. What is the probability of getting both black?
⅓ * ½ = ⅙ (½ due to the fact that there are only two marbles left in the bag)
What is the best diagram in order to solve these problems?
Tree diagram
If I am to pick a random card from a deck of 10 cards with 5 pairs of numbers, what are the chances of it being it a two pair?
2/10 * 1/9 =1/90 (note although there are multiple pairs, if you pull up a supposed number you must find the other number to match the pair)
What do you use to multiply the same number over and over again?
Exponents/Powers
What is the word for the result of the events?
Outcome
If I were to reach to roll a fair six-sided dice, what are the chances of me getting a 1,2, and 3 in a row?
⅙ * ⅙ * ⅙ = 1/ 216 possibilities (note that the denominator does change since there is no removal of objects)
If I am flipping a fair coin with a 50% chance of getting heads or tails, what are the chances of me getting double heads?
¼ (½ * ½ = ¼)
If I am trying to get a card with a different suit (spades, diamonds, hearts, clubs) in 4 draws of a deck of twenty cards with 5 cards of each suit, what are the chances of that happening?
5/20 * 5/19 * 5/18 = 125/6,840
What operation do you use to find the probability after using the tree diagram?
Multiplication
What is a probability that has an outcome that is unaffected and doesn't rely on other outcomes?
Independent Probability
What is the formula used to find the probability of combined events?
P(A) + P(B)
If I am flipping an unfair coin with a 60% chance of landing on heads and a 40% on tails, what are the chances of me getting double tails?
⅖ * ⅖ = 4/25 in simplified form (any other fraction with the same value of this is applicable as well)
If I am to pick a random card from a deck of 26 cards made up of two full suits of cards, what are the chances of it being a king and another king?
2/26 * 1/25 = 2/650 = 1/325
The name of: x! (for example 4! = 4 * 3 * 2 * 1)
Factorials
What is a probability which has an outcome that relies on previous events/outcomes?
Dependant Probability
What formula is used to find the probability of independent events?
P(A) * P(B)
Why is a tree chart better at solving these problems than a chart?
The tree diagram is needed in order to show outcomes that rely on previous outcomes (dependent probability) as a chart would make it difficult to find it.
If I am to pick a random card what are the chances of getting an ace of spades followed by an ace of clubs in a standard deck of 52 cards?
1/52 * 1/51 = 1/ 2,652