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hannahgracew12
08.12.2020 •
Mathematics
Sheldon Cooper is interested in studying the effect of distance from the bathroom mirror and the number of droplets of toothpaste that splatter on the mirror during tooth brushing. To conduct his study, he brushes his teeth at various distances from the mirror a total of 100 times. What is the sample of this study?
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Ответ:
the sample = the 100 times Sheldon brushed his teeth in front of the mirror
Step-by-step explanation:
In statistics, the sample is a small portion of a population that a researcher can study. It should represent a random subset of data from the population. The advantage of using a sample is that the size is smaller than the whole population, which makes it more manageable.
When you study the whole population, you are performing a census. That means that you are not obtaining a sample. In this case, the population would be every time that Sheldon or someone else washes his/he teeth in that bathroom.
Ответ:
("e" = 2.718281828)
Total = principal * e ^ (rate * years)
Total = 7,000 * e^(.02*5)
Total = 7,000 * 2.718281828^.1
Total = 7,000 * 1.1051709181
Total = 7,736.20