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Math·Problem-Solving and Data Analysis·Inference from sample statistics and margin of error
hard| Head stripe color | Number of sparrows |
|---|---|
| White-striped head | 22 |
| Tan-striped head | 27 |
A biologist recorded the head stripe colors for a random sample of sparrows from a certain population. Each sparrow has either a white-striped head or a tan-striped head. The results are shown in the table.
Based on these results, if there are a total of 686 sparrows in this population, which of the following is the best estimate of how many more sparrows in the population have a tan-striped head than have a white-striped head?
Based on these results, if there are a total of 686 sparrows in this population, which of the following is the best estimate of how many more sparrows in the population have a tan-striped head than have a white-striped head?
A
5
B
70
C
308
D
378