Standard deviations

by | Aug 25, 2021 | Assignment

A.This value falls outside the upper fence and is considered an outlier.B.No comment can be offered for the value since the median of the data set is unknown.C.This sale price would be expected since it falls inside the lower and upper fences.D.This value falls outside of the third quartile, but cannot be considered an outlier.2.For the data below, construct a frequency distribution using five classes. Describe the shape of the distribution. The data set: ages of 20 cars randomly selected in a student parking lot12, 11, 4, 9, 8, 11, 7, 8, 9, 8, 9, 12, 5, 15, 6, 6, 14, 8, 2, 1A.skewed to the rightB.skewed to the leftC.uniformD.symmetric bell shaped3.Over the last 10 years four mutual funds all had the same mean rate of return, 12%. These mutual funds had different standard deviations as follows: Mutual Money 8%, Cojoined Investments 6%, Together Fund 4%, All for One Fund 9%. Which mutual fund investment is the most consistent in rate of return?A.Together FundB.Co-joined InvestmentsC.All for One FundD.Mutual Money4.notA.Statistics answers questions with 100% certainty.B.Statistics organizes and analyzes information.C.Statistics collects and summarizes data.D.Statistics allows conclusion about the data to be drawn.5.For a certain car, gas mileage has a distribution that is bell shaped with a mean of 29.5 mpg and a standard deviation of 2.5 mpg. What percent of these particular cars would we expect to average between 24.5 mpg and 34.5 mpg?A.88.9%B.75%C.68%D.95%7.In calculating the standard deviation of a sample of 15 data values, what would be the divisor (the value divided by) in the calculation?A.14B.16C.The divisor can’t be determined unless you know the values of the data points in the sample of 15.D.159.A particular brand of small trucks have a mean gas mileage of 20.0 mpg and a standard deviation of 3.0 mpg. Nothing is known about the shape of the distribution. At least what percentage of these trucks would we expect to have a gas mileage between 11.0 mpg and 29.0 mpg?A.Without knowing the shape of the distribution the at least percent can’t be determined from the information given.B.99.7%C.75%D.88.9%

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