9th Common Core Math: Probability and Statistics

What is the difference between probability and statistics?

• Probability is about predicting future events, while statistics is about analyzing past events.

• Probability is used in experimental studies, while statistics is used in observational studies.

• Probability deals with qualitative data, while statistics deals with quantitative data.

• Probability is about analyzing past events, while statistics is about predicting future events.

Explain the concept of independent events in probability.

• Independent events in probability are events where the occurrence of one event decreases the probability of the other event happening.

• Independent events in probability are events that always occur together.

• Independent events in probability are events where the occurrence of one event guarantees the occurrence of the other event.

• Independent events in probability are events where the occurrence of one event does not affect the probability of the other event happening.

Tags

CCSS.HSS.CP.A.5

Calculate the mean of the following data set: 5, 8, 12, 15, 20.

• 25

• 12

• 18

• 10

Tags

CCSS.6.SP.B.5C

Define the term 'outlier' in statistics.

• An outlier in statistics is a data point that differs significantly from other observations in a dataset.

• An outlier is a data point that is the average of all observations

• An outlier is a data point that is irrelevant to the dataset

• An outlier is a data point that is always correct

If a fair six-sided die is rolled, what is the probability of rolling a 3?

• 1/4

• 1/3

• 1/5

• 1/6

Tags

CCSS.7.SP.C.7A

What is the mode of the data set: 2, 4, 6, 4, 8, 10, 4?

• 4

• 8

• 6

• 2

Tags

CCSS.6.SP.B.5C

Explain the difference between a sample and a population in statistics.

• A sample is always larger than a population.

• A population is a subset of a sample.

• A population includes all members of a specified group, while a sample is a subset of the population used for analysis.

• A sample includes all members of a specified group.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

If a bag contains 4 red marbles, 3 blue marbles, and 2 green marbles, what is the probability of drawing a blue marble?

• 1/3

• 1/4

• 3/8

• 2/9

Tags

CCSS.7.SP.C.7B

What is the range of the data set: 10, 15, 20, 25, 30?

• 20

• 18

• 35

• 5

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Describe the concept of conditional probability.

• Conditional probability is the likelihood of an event occurring without any prior information.

• Conditional probability is the likelihood of an event occurring independently of any other event.

• Conditional probability is the likelihood of an event occurring given that another event has already occurred.

• Conditional probability is the likelihood of an event occurring based on random chance.

Tags

CCSS.HSS.CP.A.5

CCSS.HSS.CP.A.3