Question

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Explanation:

Extract data from Bald Mountain Trail bar graph

The first bar graph shows the sightings on Bald Mountain Trail:

• 2016: The bar reaches the line for \(11\).
• 2017: The bar reaches the line for \(3\).
• 2018: The bar reaches the line for \(15\).

Extract data from Camel Back Trail bar graph

The second bar graph shows the sightings on Camel Back Trail:

• 2016: The bar reaches the line for \(1\).
• 2017: The bar reaches the line for \(5\).
• 2018: The bar reaches the line for \(5\).

Construct the contingency table

We organize the extracted values into a two-way contingency table with trails as rows and years as columns.

• Bald Mountain Trail: \(11\) (2016), \(3\) (2017), \(15\) (2018).
• Camel Back Trail: \(1\) (2016), \(5\) (2017), \(5\) (2018).

Answer:

Trail	2016	2017	2018
Camel Back Trail	1	5	5