During winter red foxes hunt small rodents by jumping into thick snow cover

During winter red foxes hunt small rodents by jumping

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7. During winter, red foxes hunt small rodents by jumping into thick snow cover. Researchers report that a hunting trip lasts, on average, 19 minutes and involves, on average, 7 jumps. In a surprising finding, they report that 79% of all successful jumps are made in the northeast direction. Three variables are mentioned in this report. What is the best description of the second variable mentioned? A) Quantitative and discreteB) Quantitative and continuousC) CategoricalD) Ordinal Page 2
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8. During winter, red foxes hunt small rodents by jumping into thick snow cover. Researchers report that a hunting trip lasts, on average, 19 minutes and involves, on average, 7 jumps. In a surprising finding, they report that 79% of all successful jumps are made in the northeast direction. Three variables are mentioned in this report. What is the best description of the third variable mentioned? 9. What is important to do when drawing a histogram? 10. A sample of 55 streams in severe distress was obtained during 2007. The following bar graph illustrates the number of streams that are from the Northeast, Northwest, Southeast, or Southwest. In the bar graph, the bar for the Northeast has been omitted. What percent of streams are not from the Northeast? Page 3
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11. The following table shows the percent of current smokers in 2006 among various groups, according to the Centers for Disease Control and Prevention. Would it be correct to display these data in a single pie chart? A) Yes, because the data are categorical and all categorical data can be plotted in a pie chartB) Yes, because the data break down all smokers age 18 to 29 in the United States in 2006C) No, because the data represent smokers within four different groupsD) No, because the data are quantitative
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