Easy Odds
A coin with heads and tails is flipped. What is the probability of getting heads?
1/2.
Which is greater?
3/8 or 1/2?
1/2
A candy machine contains:
What is the probability of getting a blue candy?
→ 6/15 = 2/5
Which event is impossible?
A. Rolling a 7 on a standard die
B. Rolling a 6
C. Rolling an even number
A
A spinner has 10 equal sections.
If the probability of landing on purple is 3/10, how many purple sections are there?
3
A spinner has 8 equal sections:
what is the probability of landing on green?
2/8 , 1/4
A pink and purple spinner has 12 equal spaces. 5 are purple.
What fraction represents the probability of pink?
7/12
There are 10 movies in a random movie picker.
What is the probability that the picker chooses a movie that is NOT comedy?
6/10 =3/5
A standard die is rolled.
What is the probability of rolling a number greater than 4?
2/6 =1/3
A game has a probability of winning of 2/6.
What is the probability of losing? answer in simplest terms.
4/6, 2/3
A bag has 20 marbles.
What is the probability of NOT picking yellow?
→ 12/20 = 3/5
The probability of an event is:
6/18
Simplify the probability.
1/3
A game gives you a 1/4 chance of winning each round.
Would you say you are:
A. Certain to lose
B. Likely to lose
C. Equally likely to win or lose
D. Likely to win
B) Likely to lose
Would you play this game if you had to pay $10 to enter?
A bag contains 15 marbles:
You pick one marble, do not put it back, and then pick another.
What is the probability of picking red twice in a row?
→ 5/15 × 4/14
→ 20/210
→ 2/21
There are 24 cards in a deck.
You win if you pick either a star OR a moon.
What is your probability of winning?
→ 6 + 5 = 11
→ 11/24
Is the game worth playing if you have to pay five dollars every time?