Simple Events
Permutations
Counting Principle
Vocabulary
How Likely is it?
100
Maria is flipping a coin and spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability the coin will land on heads and the spinner will land on the letter "A"?
1/8 or 0.125, or 12.5%
100
In how many ways can a president, vice president, and secretary be randomly selected from a class of 25 students?
13,800
100
You are trying to decide what to wear to school. You know you have a green pair of pants, a red pair, and a blue pair. You also have a brown shirt, a plaid shirt, and a yellow shirt. How many different outfit combinations can you make?
9
100
Define "sample space."
The set of all of the possible outcomes in a probability experiment.
100
How likely is it that a coin is flipped and lands on tails?
Equally likely
200
The classic wood carousel at Carousel Park in Hampton, VA has 32 jumping horses and 16 standing horses. What is the probability of randomly selecting a jumping horse?
1/2, or 0.50, or 50%
200
You have five seasons of your favorite TV show on DVD. If you randomly select two of them from a shelf, what is the probability that you will select season one first and season two second?
1/20
200
What is the number of possible outcomes for spinning one spinner with 8 equal sections and another spinner with 6 equal sections?
48 possible outcomes
200
Define "experimental probability."
The probability of what actually occurs.
200
How likely is it that a number cube is tossed and lands on 3?
Unlikely
300
What is the probability of rolling two odd numbers in a row with a standard number cube?
1/4, or 0.25, or 25%
300
A garage door code has 5 digits. If no digit is repeated, how many codes are possible?
30,240
300
Amiya and Keyshawn are candidates for class president of the 7th grade. Ajaye, Chishon, and Laura are candidates for vice president. How many winning combinations are possible?
6
300
Describe the difference between events that are certain, likely, equally likely, unlikely, or never going to happen.
Certain would be 100% of the time, likely is anything greater than 50% of the time, equally likely is exactly 50% of the time, unlikely is anything less than 50% of the time, and never is anything that has a 0% chance of occuring.
300
How likely is it that a number cube is tossed and it lands on 8?
never going to happen
400
There are 3 red marbles, 2 green marbles, and 1 yellow marble in a box. One marble is taken out and not replaces. A second marble is then taken out and not replaced. What is the probability both marbles that were taken out are red?
1/5, or 0.20, or 20%
400
A child has wooden blocks with the letters G,R,T,I and E. Find the probability that the child randomly arranges the letters in the order TIGER.
1/120
400
Ms. French is packing for a trip. She packs a white blouse, a pink blouse, a blue blouse, and a green blouse. She also packs a black suit, a navy blue suit, and a gray suit. What is the probability that the first outfit she wears is the gray suit with a pink blouse?
1 out of 12
400
Define "complementary events."
The events of one outcome happening and that outcome not happening. The sum of the probabilities of complementary events is 1.
400
How likely is it that a number cube is tossed and lands on any number 1-6?
Certain
500
Jarvonya spins a spinner with 5 equal sections numbered 1-5 and she spins another spinner with 5 equal sections with the letters A-E. What is the probability she will spin a 4 and a B?
1/25 or 0.04, or 4%
500
Adrian, Juian, and three of their friends will sit in a row of five seats at a baseball game. If each friend is equally likely to sin in any seat, what is the probability that Adrian will sit in the first seat and Julian will sit in the second seat?
1/20
500
What is the probability of rolling three 4's in a row on a number cube?
1/216
500
Define "theoretical probability."
The ratio of the number of ways an event can occur to the number of possible outcomes.
500
How likely is it that a number cube lands on 2 and a coin lands on heads?
unlikely
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