veronica25681
12.03.2020 •
Mathematics
In a local university, 40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. The probability that the sample proportion (the proportion living in the dormitories) is between 0.30 and 0.50 is .
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Ответ:
194 salamanders/miles^2
Step-by-step explanation:
Population Density = Population/Area
Area = pi r squared = 0.7853 mi^2
152/0.7853 = 193.5
Round 193.5 to 194
Population Density = 194 salamanders/miles^2