You are planning an experiment to determine the effect of the brand of gasoline

Question

You are planning an experiment to determine the effect of the brand of gasoline and the weight of a car on gas mileage measured in miles per gallon. You will use a single test car, adding weights so that its total weight is 3,000, 3, 500, or 4,000 pounds. The car will drive on a test track at each weight using each of Exxon, Sunoco, and Hess gasoline. In the gas mileage experiment, gasoline brand is a qualitative variable and weight is a quantitative variable. gasoline brand and weight are both qualitative variables. gasoline brand and weight are both quantitative variables. gasoline brand is a quantitative variable and weight is a qualitative variable. Which of the following statements is not accurate with respect to pie charts? A pie chart can always show the same data that a bar chart can show Pie charts are most useful for illustrating proportions of the whole data set for various categories A bar chart can always show the same data that a pie chart can show A pie chart can be used for a data set with a relatively small number of possible categories Which of the following graphs would be appropriate to display the percent of residents at least 65 years old in each of the 50 states in 2011? Only a bar graph Only a line graph Only a pie chart Both a bar graph and a pie chart

Explanation / Answer

Solution:-

5) Gasoline brand is qualitative variable and weight is quantitative variable.

6) a) A pie chart can always show the same data that a bar chart can show.

Bar graphs are used to compare things between different groups or to track changes over time. However, when trying to measure change over time.

Pie charts are best to use when you are trying to compare parts of a whole. They do not show changes over time.

7) Both bar graph and pie charts.

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