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A small, independent amusement park collects data on the number of cars with out-of-state license plates. The sample size is fixed at n=25 each day. Data from the previous 10 days indicate the following number of out-of-state license plates:

DayOut-of-state Plates1624354758637485931011

The standard deviation of proportions of out of state "tourists" (cars with out-of-state plates) is

Group of answer choices

0.156 or 15.6%

0.224 or 22.4%

0.0834 or 8.34%

0.4724 or 47.42%

0.0 or 0%