test unit 10
Event A: Stops on an even number.
1
What are the odds of spinning blue?
1/2
You are required to choose two topics from a list of five to write about on your science test. How many different pairings are possible?
10
Event A: stops on red
3
Evaluate 8P5 = a0.
6,720
If you roll two number cubes, what is the probability of their sum being seven or higher?
7/12
Find P(A or B), if events A and B are overlapping.
7/9
Which game isn't fair for two players to play?
A number cube is rolled. Player 1 gets a point for any number that is 3 or higher, and player 2 gets a point for any number less than 3.
You and two friends (Adam and Alana) will only play a game if it is fair for all three of you. The game your friend has proposed is to roll two number cubes (numbered 1-6) and find the sum. If the sum is from 1-4 you get the point, 5-8 Adam gets the point, and 9-12 Alana gets the point.
No Adam
Twenty-four girls are trying out for 12 spots on the cheerleading team. If you wanted to determine how many different groups of 12 girls can be created, would you use a permutation or a combination?
combination
events with no outcomes in common
disjointed events
an arrangement of objects where order is not important
combination
compound events that are affected by prior events outcomes
dependent events
the ratio of the number of successes to the number of trials
experimental probability
events with at least one outcome in common
overlapping events
an arrangement of objects where order is important
permutation
Evaluate 6C3.
20
There are seven black socks, eight blue socks, 10 white socks, and five patterned socks in the drawer. What is the probability of pulling a blue sock, replacing it, and then drawing a patterned sock out of the drawer?
3
What is the probability of flipping heads three times in a row?
3
There are eight sprinters competing for first, second, and third place ribbons. How many different ways can the ribbons be awarded?
336
A bag contains four yellow marbles, six red marbles, five blue marbles, six white marbles, and four black marbles. What is the theoretical probability of pulling a white marble from the bag?
4
What are the odds of rolling two number cubes and getting a sum of seven?
4
Are the events disjointed or overlapping?
overlapping events
the ratio of favorable outcomes to total possible outcomes
theoretical probability
You rolled a number cube 50 times. Your results are shown in the table below.
1
A drawer contains 3 tank tops, 6 short-sleeve shirts, 4 three-quarter sleeve shirts, and 5 long-sleeve shirts. What is the probability of randomly choosing a tank top and then a three-quarter sleeve length, if you replace the tank top?
2
Find P(A or B) if the events are disjointed. P(A) = , and P(B) = .
2
The numbers 1 through 5 are recorded on individual slips of paper and placed in a hat. What is the probability of drawing the 3, not replacing it, and then drawing the 4?
2
Is the experimental or theoretical probability higher for the coin landing heads side up?
experimental probability
You randomly draw a marble from a bag. You then put it back before drawing a second marble. These events are events.
independent
Are the events independent or dependent?
independent events
