Probability Line
Ms. Trevisan bought donuts for the class. There are 20 donuts and 16 students. If Ms. Trevisan plans to eat one herself and give two to teachers, what is the likelihood that every students gets a donut?
Certain.
Define "simple event".
When there are only two possible outcomes.
Define "Sample Space".
The set of all possible outcomes in an experiment.
Colton bought a 21 raffle tickets with a 3% chance of winning. What is the likelihood he wins?
Likely.
(He has a 63% chance.)
Myra flips a coin three times. What are the odds she gets tails three times in a row?
1/8
Alexandra is at a carnival. She plays a game where she picks rubber ducks at random for a reward. There are a total of 42 ducks, with 1 winning duck. After picking 6 ducks, what are the odds she won as a percent?
6/42 = 1/7 = 14.29%
A playlist has three types of music: hip-hop, country and instrumental. The hip-hop consists of 28% of the music while the country makes up 34% of the music. What is the likelihood of selecting an instrumental song over a country song?
More likely.
(When compared to the percentages of country songs 34%, instrumental is 38%, meaning it has a higher chance of being selected.)
Sohail has a pizza with eight slices. One quarter of the pizza has pineapple while half has pepperoni. The whole thing has mushrooms. If he picks a slice to eat at random, what are the odds he selects one with pineapple and mushrooms?
2/8 = 1/4
You roll a 4 sided die then toss a coin. Create a tree diagram of all the outcomes.
1) 1 2) Heads, Tails
1) 2 2) Heads, Tails
1) 3 2) Heads, Tails
1) 4 2) Heads, Tails
Outcomes: (1,H) (1,T) (2,H) (2,T) (3,H) (3,T) (4,H) (4,T)
Jar A and Jar B both contain black and white marbles. Jar A has more black marbles than white marbles and Jar B has more white marbles that black marbles. All the marbles are combined into one jar, Jar C. What are the odds you pick a marble from Jar B?
Impossible.
Create a tree diagram and answer the following:
Sahaara has a box of squishies. One is pink, the other is blue and the last is orange. What are the odds she picks orange when picking twice?
1)Pink 2)Pink, Blue, Orange
1)Blue 2)Pink, Blue, Orange
1)Orange 2)Pink, Blue, Orange
Outcomes: (P,P) (P,B) (P,O) (B,P) (B,B) (B,O) (O,P) (O,B) (O,O)
The odds of picking orange are 5/9.
Chloe flips a coin seven times. Her results were heads, heads, tails, heads, heads, heads, tails. What is the experimental probability of her picking tails?
2/7