Top of Form 1.  Some variables that were recorded while studying diets of sharks are given below. Which of the variables is categorical?   The length of the shark being observed The type of shark being observed The amount of food eaten in a day by the shark being observed The age of the shark being observed 2.  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. They also report that, surprisingly, 79% of all successful jumps are made in the northeast direction. Three variables are mentioned in this report. The first variable mentioned is   quantitative and discrete. ordinal. quantitative and continuous. categorical. 3.  Here is a stemplot of body temperature (in degrees Fahrenheit) for 65 healthy adult women. The number of women in the sample that have a body temperature lower than 98 degrees Fahrenheit is   15. 45. 20. 50. 4.  Here is a histogram of the yearly number of unprovoked attacks by alligators on people in Florida over a 33-year period.   What is the overall shape of the distribution?   Roughly symmetric with an outlier Slightly skewed to the right Bimodal Strongly skewed to the left 5.  A sample of 20 endangered species was obtained and the length of time (in months) since being placed on the list was recorded for each species. A stemplot of these data follows. In the stemplot, 5|2 represents 52 months. The first quartile of the length of time (in months) since being placed on the list for these 20 species is   74. 59.5. 75.5 5. 6.  Here is a dotplot of migraine intensity (on a scale of 1 to 10) for 29 adults suffering from recurring migraines. The third quartile for this data set is   9.25. 10. 9.5. 9. 7.  A maze experiment uses 24 lab rats of various ages, as summarized below. Age (in months) Number of rats 2 4 3 6 4 6 5 4 7 3 9 1 What is the median rat age (in months) for this maze experiment?   4 5 4.5 3.5 8.  Geckos are lizards with specialized toe pads that enable them to easily climb all sorts of surfaces. A research team examined the adhesive properties of 7 Tokay geckos. Below are their toe-pad areas (in square centimeters, cm2). 5.6 4.9 6.0 5.1 5.5 5.1 7.5 Rounded to two decimal places, the mean toe pad area in this sample of geckos is _______ cm2.   9.  By inspection, determine which of the following sets of numbers has the smallest standard deviation.   7, 8, 9, 10 5, 5, 5, 5 0, 0, 10, 10 0, 1, 2, 3

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