Mid-Chapter Quiz--Probability

The ___________ of any outcome of a chance process is a number between 0 and 1 that describes the proportion of times the outcome would occur in a very long series of repetitions.

• probability

• randomness

• sample space

• trial

Tags

CCSS.7.SP.C.5

The law of large numbers says that if we observe more and more repetitions of any chance process, the proportion of times that a specific outcome occurs approaches its ________.

• probability

• randomness

• sample space

• series of trials

Tags

CCSS.7.SP.C.6

__________ is the imitation of chance behavior, based on a model that accurately reflects the situation.

• Probability

• Simulation

• Randomness

• Repetition

Tags

CCSS.7.SP.C.8C

The questions on a multiple choice test each have 6 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?

• rolling a six-sided number cube 6 times
• rolling a six-sided number cube 20 times
• spinning a spinner with 4 equal sized sections 4 times
• choosing 1 marble in a bag of 20 different colored marbles

Tags

CCSS.7.SP.C.8C

What is the theoretical probability for rolling a number greater than 4?

• 1/6

• 1/3

• 1/2

• 30%

Tags

CCSS.7.SP.C.7A

If you are spinning a color wheel with seven colors on it and you have 100 spins to get a red.  After 99 spins you have gotten every color but red.  What is the chance you will spin a red on the 100th spin?

• 1
• 1/100
• 6/7
• 1/7

Tags

CCSS.HSS.CP.A.5

A statistician calculates the probability of an event in an experiment. After a dozen trials of the experiment, the statistician finds that the theoretical probability and the experimental probability differ. What is the likely reason for this?

• The statistician hasn't completed enough trials of the experiment.
• The statistician made an error in their calculations.
• The statistician made an error in constructing the experiment.

• The statistician has completed too many trials of the experiment.

What are non mutually exclusive events?

• Events that can happen at the same time

• Events that cannot happen at the same time

• Events that add up to 100%

• Events that are guaranteed to have the same probability

Tags

CCSS.HSS.CP.B.7

What is the probability that a student does not play on a sports team? 

• .5
• .45
• .55
• .15

What percentage of students do chores?

• 64%

• 81%

• 36%

• 31%

Tags

CCSS.8.SP.A.4