Which variable is discrete? Question 1 options: number of runners who drop out time to finish a race length of race in kilometers heights of runners Which answer best describes the distribution of the data in the line plot? Question 2 options: bell-shaped skewed left uniform skewed right The frequency histogram shows the lengths of trails in a large park. How many trails are less than 18 kilometers long or at least 36 kilometers long? Question 3 options: 15 10 21 24 A camping leader bought the items listed in the table for his team. What is the average cost of an item in his purchase? Item Sun visor Sunglasses Water bottle Whistle Quantity 6 10 14 9 Question 4 options: $6.35 $5.93 $4.55 Cost per item $9.45 $6.95 $5.50 $3.10 $6.25 Which answer is the approximate standard deviation of the data set? Question 5 options: 4.3 6.5 7.0 8.5