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Mathematics, 09.06.2021 15:30, operrt
People applying for a driver's license In California usually need to take a multiple choice test as a part of the application process. An administrator of these tests is curious about how much time people spend on the test. They take an SRS (simple random sample) of 151515 test results and find that the times are strongly skewed to the left with a mean of \bar x=14.2 x ˉ =14.2x, with, \bar, on top, equals, 14, point, 2 minutes. There are also a few outliers in the sample data.
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Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?
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