Statistics Topic A

A data set in which each value is a number.

• Statistical Question

• Categorical Data

• Variability

• Numerical Data

A question that will be answered with varying data.

• Statistical Question

• Categorical Data

• Variability

• Numerical Data

A data set in which each value is not a number.

• Statistical Question

• Categorical Data

• Variability

• Data

Information collected

• Statistical Question

• Categorical Data

• Variability

• Data

How many different data values are present, or how spread out the data values are.

• Statistical Question

• Categorical Data

• Variability

• Data

Statistical or not statistical:

How many hours of sleep do the 6th grade students get on a school night?

• Statistical

• Not Statistical

Statistical or not statistical:

How many hours of sleep does Mrs. Morris get on a school night?

• Statistical

• Not Statistical

Statistical or not statistical:

How many hours of sleep does the CDC recommend middle schoolers get each night?

• Statistical

• Not Statistical

Statistical or not statistical:

How many hours of sleep do 6th graders get on the weekend?

• Statistical

• Not Statistical

The following dot plot shows the amount of hours the students in 6th grade sleep on a school night. Use the dot plot to answer the questions:

What is the least amount of hours a student sleeps?