Theoretical Prob.
A coin is flipped twice. What is the probability of flipping heads twice?
What is
1/4 = 25%
The theoretical probability of flipping two consecutive heads on a coin is 1/4. If you do 20 trials, about how many times would you expect two heads?
What is
5/20 or 5
An event that will definitely happen is called what?
What is
Certain
At a smoothie shop, you can choose strawberry or mango as a fruit, and milk or juice as a base. How many possible outcomes are there?
What is
4 outcomes or combinations
Flipping a coin twice. Are the events independent or dependent?
What is Independent
A six-sided die is rolled twice. What is the probability of rolling a 3 both times?
What is
1/36 = 2.77%
The probability of rolling a 4 on a six-sided die twice is 1/36. If you run 36 trials, how many successes would you expect?
What is
1/36 or 1
An event that cannot happen is called what?
What is
Impossible
A student chooses a T-shirt colour: red, blue, or black. And a pair of shoes: runners or slides. How many total possible outcomes are there?
What is
6 outcomes or combinations
What makes events independent?
What is
If one event does not affect/change the other
A spinner has 4 equal sections: red, blue, green, and yellow. It is spun twice. What is the probability of landing on red or green on the first spin, then blue or yellow on the second spin?
4/16 or 25%
A spinner has 4 colour options (red, blue, yellow, green). If you spin two times and run 40 trials, about how many times would you expect to land on red both spins?
What is
2.5/40 or ~2.5
If two outcomes have the same chance of occurring, they are called what?
What is
Equally Likely
At a burger place you choose:
Type of burger: beef, chicken, veggie
Drink: water, soda, juice
How many total possible outcomes are there?
What is
9 outcomes or combinations
Picking a card from a deck, replacing it, then picking another card. Independent or Dependent?
Independent
You roll a die and flip a coin. What is the probability of rolling an odd number and getting tails?
What is
3/12 = 25%
You flip a coin twice and run 100 trials. About how many times would you expect to land on heads and then tails?
What is
25/100 or 25
If something has a greater than 50% chance of happening, is is called what?
A password is made using:
One letter: A,B, or C
One number: 1,2,3, or 4
How many total possible outcomes are there?
What is
12 outcomes or combinations
A bag has red or blue marbles. You pick one, do not put it back, then pick another. Independent or Dependent?
What is Dependent
Dependent
A standard deck has 52 cards. You draw a card, replace it, then draw again. What is the probability of getting a heart on the first draw, then a queen on the second draw?
What is
52/2704 = 1.92%
You roll a 6-sided die twice and run 50 trials. About how many times would you expect to roll an even number on your first roll, then an odd number on your second roll?
What is
12.5/50 or 12.5
If something has a small chance of happening but is still possible, it is called what?
What is
Unlikely
A student creates a custom ice cream stand:
Flavours: vanilla, chocolate, strawberry
Toppings: sprinkles, caramel, or cookie crumble
Cone type: waffle or regular
How many total possible outcomes are there?
What is
18 outcomes or combinations
If I draw a card from a deck without replacing it, then pick another card. What does this affect?
What is
Sample Space or Total possible outcomes