Vocabulary
Simple Events
Compound Events
Permutations and Outcomes
Experimental versus Theoretical
100
probablity
What is the chance something will happen ?
100
A number cubed, number 1-6 is rolled. What is the probability of rolling a 2 or a 5?
What is 2/6 or 1/3?
100
A number cube and a die are both rolled. What is the probability of rolling tails and an even number?
What is 1/2 * 1/2 = 1/4
100
How many ways can you choose 2 dishes out of 8?
What is 8 * 7 = 56
100
What is experimental probability?
What is the outcome when an experiment is completed.
200
a possible result in a probability experiment
What is the outcome?
200
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?
200
A bag contains the following marbles: 4 red, 2 green, 3 yellow, and 1 orange. What is the probabilty 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
200
How many different ways can 5 airplanes be arranged at 5 gates?
What is 120?
200
A boy tosses a coin and gets heads 7 times out of 20. Is this theoretical or experimental?
What is experimental?
300
what should happen in probability
What is theoretical probability?
300
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?
300
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 1/15 * 1/14 = 1/210
300
If eight runners are in a race, how many different ways is their for the runners to cross the finish line?
What is 40,320?
300
The probability of rolling a multiple if three on a number cube is 2/6 or 1/3. Is this theoretical or experimental probability?
What is theoretical?
400
two or more events that do not effect each other.
What are independent events?
400
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?
400
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
400
If seven clarinet players are seated in a row, what is the probability that Lucy will be first and Drew will be second?
What is 7 * 6 = 42 possible ways so the probability of Lucy being first and Drew being second is 1/42.
400
A card is chosen randomly from a deck of cards and is a face card. Is this theoretical or experimental probability?
What is experimental?
500
the use of multiplication to find the total outcomes possible.
What is the Fundamental Counting Principle?
500
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%?
500
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
500
In how many ways can you choose 2 colors out of 14 different colors?
What is 14 * 13 = 182 different 2 color outcomes
500
Why would someone use a theoretical probabilty rather than just testing an event?
What is to make a prediction of what will happen?