Statistical Data Interpretation and Analysis

The video tutorial covers the use of histograms to answer statistical questions. It begins with an introduction to statistical questions using Alaska's population data. The lesson then moves on to analyzing earthworm lengths using histograms, comparing different histogram groupings, and comparing the heights of basketball and baseball players. The tutorial concludes with a summary of histogram concepts and a discussion of homework assignments.

Which of the following is a non-statistical question?

• Which age group is the largest part of the population?

• What is the average age of retirement in Alaska?

• What is the age difference between the youngest and oldest residents?

• At what age can Alaskans vote?

How many earthworms were measured to be between 20 and 40 millimeters?

• 4

• 12

• 6

• 2

What is the typical length range for the majority of the earthworms?

• 40 to 60 millimeters

• 0 to 20 millimeters

• 20 to 40 millimeters

• 60 to 80 millimeters

In the second histogram, what is the typical length of the earthworms?

• 35 millimeters

• 20 millimeters

• 25 millimeters

• 30 millimeters

Which histogram likely represents the height distribution of basketball players?

• The one with a center around 70 inches

• The one with a center around 80 inches

• The one with a center around 60 inches

• The one with a center around 90 inches

What is the center of the data distribution for the basketball players?

• 70 inches

• 75 inches

• 80 inches

• 85 inches

What is the center of the data distribution for the baseball players?

• 70 inches

• 72 inches

• 76 inches

• 74 inches

Which grade has a greater spread in the number of text messages sent?

• Sixth grade

• Cannot be determined

• Seventh grade

• Both have the same spread

What is the approximate center of the text message data for seventh grade?

• 85 messages

• 100 messages

• 90 messages

• 95 messages

How many possible solutions exist for the number of dimes Jada has?

• 7

• 6

• 4

• 5