Statistics Predictions

A prediction has been made that the chance that a person will be robbed in a certain city is 15%.

• Inferential

• Descriptive

_____________________ statistics consists of generalizing from samples to populations, performing estimations and hypothesis tests, determining relationships among variables, and making predictions.

• mathematical

• descriptive

• inferential

• population

10% of college students are predicted to travel out the country during spring break.

• Inferential

• Descriptive

Do you agree with this prediction?

• Yes

• No

True or False: all samples lead to a good prediction about an entire population.

• True

• False

Tell if the statement if Descriptive or Inferential

The chances of you getting a new car is about the same as passing your math class.

• Descriptive

• Inferential

It is predicted that the average number of automobiles each household owns will increase next year.

• Inferential

• Descriptive

The scatter graph shows the relationship between two test scores of some students.

Describe the correlation shown on the diagram.

• Positive

• Negative

• No Correlation

The scatter graph shows the relationship between the test score and the time spent revising for a group of students.

Describe the correlation shown on the diagram.

• Positive

• Negative

• No Correlation

The scatter graph shows the relationship between the age of a car and its value.

Another car is 6 years old. Estimate the value of this car.

• £6000

• £2000

• £4000

• £3000