1 In the screenshots of the “Sampler” (below), show how you would create a small random sample of 10 animals and a large random sample of 40 animals. To create two separate tables (rather than a single hierarchical table), re-select and re-open “Sampler” from the Plugins menu before each sampling simulation.
2 In the options tab, did you select “with replacement” or “without replacement”? Why?
3 Make a bar chart for the animals in each sample, showing percentages of fixed and unfixed.
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The percentage of fixed animals in the entire population is 47.7%.
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The percentage of fixed animals in the small sample is .
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The percentage of fixed animals in the large sample is .
4 Make a bar chart for the animals in each sample, showing percentages for each species.
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The percentage of tarantulas in the entire population is roughly 5%.
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The percentage of tarantulas in the small sample is .
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The percentage of tarantulas in the large sample is .
5 Direct the sampler to generate a different set of random samples of these sizes. Make a new bar chart for each sample, showing percentages for each species.
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The percentage of tarantulas in the entire population is roughly 5%.
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The percentage of tarantulas in the small sample is .
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The percentage of tarantulas in the large sample is .
6 Which repeated sample gave us a more accurate inference about the whole population? Why?
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
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