Earthworm Measurements and Data Analysis

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

Which of the following is a non-statistical question?

• 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?

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

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

• 12

• 6

• 4

• 2

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

• 0 to 20 millimeters

• 20 to 40 millimeters

• 40 to 60 millimeters

• 60 to 80 millimeters

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

• 40 millimeters

• 30 millimeters

• 20 millimeters

• 10 millimeters

Which histogram likely represents the heights 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?

• 75 inches

• 80 inches

• 70 inches

• 85 inches

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

• Sixth grade

• Seventh grade

• Both had the same spread

• Neither had a spread

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

• 100 messages

• 85 messages

• 90 messages

• 95 messages

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

• 4

• 5

• 6

• 7

Order the following numbers from least to greatest: -4, -3.5, -5/4, 0.

• -4, -5/4, -3.5, 0

• -3.5, -4, -5/4, 0

• -5/4, -4, -3.5, 0

• -4, -3.5, -5/4, 0