A) Vocabulary
the list of all possible outcomes
What is the sample space?
A cup has sticks numbered 1 through 13. What is the probability of an odd number?
What is 7/13?
A coin and a die are both rolled. What is the probability of flipping tails and not an even number?
What is 1/4?
What is experimental probability?
What is the outcome when an experiment is completed.
A bag contains marbles; 3 red, 2 green, 5 yellow, 8 black, 4 purple. The probability of drawing a yellow marble and then a black marble.
5/22 * 8/21 =
What is 20/231
the result of an event
What is the outcome?
A spinner has 6 equal sections, red, blue, yellow, green, orange, and pink. What is the probability that the spinner will land on yellow?
What is 1/6?
A bag contains the following marbles: 4 red, 2 green, 3 yellow, and 1 orange. What is the probability that a randomly selected marble is not green?
What is 8/10 = 4/5?
Mia tosses a coin and gets heads 7 times out of 20. Is this theoretical or experimental?
What is experimental?
Flipping a coin and if it is tails rolling a die for 4 or greater.
1/2 * 1/2 =
What is 1/4
The expected/ predicted to happen in a probability question.
What is theoretical probability?
A spinner has 10 equal sections, 1,2,3,4,5,6,7,8,9, and 10. If the spinner is spun, what is the probability of spinning a number less than 7?
What is 6/10 or 3/5?
A drawer contains 4 white, 4 black, 2 yellow, and 5 polka-dot socks and Taylor wants to find a pair of yellow socks to wear to school. What is the probability that she doesn't choose a pair of yellow socks?
What is 2/210 = 1/105?
The probability of drawing a face card from a standard deck of cards is 3/13. Is this theoretical or experimental probability?
What is theoretical?
flipping a coin followed by flipping another coin.
1/2 * 1/2=
What is 1/4
Two events that cannot both occur at the same time?
What is mutually exclusive?
A drawer contains 20 socks: 8 blue, 4 green, 6 black, and 2 white. What is the probability of picking out a blue sock?
What is 8/20 or 2/5?
The probability that is will rain tomorrow is 0.85. What is the probability that it won't rain?
What is 0.15?
A heart is randomly chosen from a deck of cards 7 out of 12 times. What is the experimental probability?
What is 7/12?
selecting from 30 named sticks from a cup. Probability of selecting Jack and then Patrick
1/30 * 1/30 = (with replacement!)
What is 1/900
Two events that together make up all the possible outcomes
What are complimentary events?
A cup is selected at random from a cupboard.
The probability of selecting a white cup is 2/5 and the probability of selecting a black cup is 1/4.
What is the probability of selecting a black or white cup?
What is 13/20?
A cup is selected at random from a cupboard.
The probability of selecting a white cup is 2/5 and the probability of selecting a black cup is 1/4.
What is the probability of not selecting a black nor white cup?
What is 7/20?
A heart is randomly chosen from a deck of cards 7 out of 12 times. What is the theoretical probability?
What is 1/4?
5 unique bunnies in a bag. The probability that a black bunny will escape once the white and the spotted one have escaped.
1/5 * 1/4 * 1/3 =
What is 1/60