A scientist monitors the number of eggs in five duck nests in parks, five duck nests in zoos, and five duck nests in the wild during the spring and summer for three years. He makes a multiple line graph to plot and compare data for the three locations. Which question describes what the scientist is most likely testing?

The scientist counts eggs in nests from three different settings: parks, zoos, and the wild. Comparing those counts over time can show which setting has nests with the most eggs, so the question is “What setting is best for producing the most eggs?” The data do not compare duck colors or measure safety.

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