Math  /  Data & Statistics

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QUESTION 7
The data set below contains the maximum wind speeds (in miles per hour) of 15 hurricanes in 2005 hurricane season. [75,150,160,105,175,115,90,85,80,180,80,75,185,115,85][75,150,160,105,175,115,90,85,80,180,80,75,185,115,85]
Create a graph (dotplot, histogram, stem and leaf plot) of the data. Which statement below best describes this data set? A. The data has a symmetric distribution so the mean is a better measure of the center of the data set than the median. B. The data are skewed so the median is a better measure of the center of the data set than the mean. C. The data has a symmetric distribution so the median is a better measure of the center of the data set than the mean. D. The mode is the measure that best describes the center of the data set.
QUESTION 8 5 points 30%30 \% of high school students in a small town enjoy riding public transportation. In a random sample of 80 high school students, 45%45 \% responded that they enjoy riding public transportation. Which numerical value represents a parameter?

Studdy Solution
Identify the parameter in the high school students' data. A parameter is a value that describes a characteristic of a population. In this case, 30%30\% of high school students enjoy riding public transportation, which is the parameter.
The best statement for the hurricane data set is: B. The data are skewed so the median is a better measure of the center of the data set than the mean. \text{B. The data are skewed so the median is a better measure of the center of the data set than the mean.}
The parameter in the high school students' data is: 30% 30\%

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