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Questions and Answers
What was the median body length of tuatara found on Tiritiri Matangi Island in 2013?
What was the median body length of tuatara found on Tiritiri Matangi Island in 2013?
Approximately 220mm.
How many tuatara were measured in the 2013 study on Tiritiri Matangi Island?
How many tuatara were measured in the 2013 study on Tiritiri Matangi Island?
31 tuatara.
What does the left skewness of the distribution indicate about the body lengths of the tuatara?
What does the left skewness of the distribution indicate about the body lengths of the tuatara?
It indicates that there are more tuatara with body lengths between 200mm and 240mm than in other ranges.
What range of body lengths did the tuatara measured in 2013 fall within?
What range of body lengths did the tuatara measured in 2013 fall within?
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How long after the release of tuatara were they measured on Tiritiri Matangi Island?
How long after the release of tuatara were they measured on Tiritiri Matangi Island?
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Study Notes
Tuatara Body Lengths
- In 2003, 60 adult tuatara were released on Tiritiri Matangi Island.
- Ten years later, 31 tuatara were found.
- Their body lengths were measured.
- The median body length is shown on the graph.
- The graph displays the distribution of body lengths for the 31 tuatara.
- The x-axis represents the length in millimeters (mm).
- The y-axis shows the number of tuatara.
- The data points are shown as circles.
- The dotted line on the graph indicates the median body length.
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Description
This quiz focuses on the body lengths of tuatara as illustrated in the graph from a 2003 study. You will analyze the distribution of body lengths and the significance of the median. Test your understanding of this ecological data set and its implications for the tuatara population.
