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 an even number?
What is (1/2 * 1/2 =) 1/4?
How many ways can you choose 2 dishes out of 8?
P(8,2)=8 * 7 =
What is 56 ways?
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 and is it independent or dependent
5/22 * 8/21 =
What is 20/231 and dependent?
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 green then a red will be picked, if the marble is replaced for the second draw.
What is (2/10 * 4/10 =) 8/100 or 2/25?
How many different ways can 5 airplanes be arranged at 5 gates?
P(5,5) = 5*4*3*2*1 =
What is 120?
A boy 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. The probability and whether it is independent or dependent.
1/2 * 1/2 =
What is 1/4 and dependent
what is 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 probabilty 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 Julie wants to find a pair of yellow socks to wear to school. What is the probability that she will choose a pair of yellow socks in her first two picks if she doesn't replace the sock she draws first.
What is (2/15 * 1/14 =) 2/210 = 1/105?
If eight runners are in a race, how many different ways is there for the runners to cross the finish line?
P(8,8) = 8*7*6*5*4*3*2*1=
What is 40,320?
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. The probability and independent or dependent.
1/2 * 1/2=
What is 1/4 and independent?
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?
A blue number cube and an orange number cube are rolled. What is the P(3, then even)?
What is (1/6 * 1/2 =) 1/12?
(the colors are extraneous information)
If seven clarinet players are seated in a row, what is the probability that Lucy will be first and Drew will be second?
7 * 6 = 42 possible ways so the probability of Lucy being first and Drew being second
What is 1/42?
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 with replacement. Probability of selecting Sophia and then Varsha and is it independent or dependent.
1/30 * 1/30 = (with replacement!)
What is 1/900 and independent?
A class has 20 boys and 12 girls. What is the percent chance that the teacher will choose a girl to answer a question?
What is 12/32 = 37.5%?
A spinner with equal sections of red, blue, green, and purple is spun while a number cube is rolled. What is the P (not blue and not a 3)
What is (3/4 * 5/6 =) 15/24 or 5/8?
In how many ways can you choose 2 colors out of 14 different colors?
P(14,2)= 14 * 13 =
What is 182 different 2 color outcomes?
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 ...and is it independent or dependent.
1/5 * 1/4 * 1/3 =
What is 1/60 and dependent?