Bob Baffert has two thoroughbred horses in his barn that he brings out every morning to train for the upcoming races. Hoppertunity is a horse training for a 2,400-meter race and Dortmund is a horse training for a 1800-meter race. In a given workout, Hoppertunity and Dortmund start running at the same time. Dortmund runs twice as fast at Hoppertunity; however, Hoppertunity starts 200 meters ahead of Dortmund. After 12.5 seconds, Dortmund catches up with Hoppertunity.

Let r represent Hoppertunity's rate. Match expressions to the boxes and symbols to the circles to create an equation that can be used to find the rate at which Hoppertunity runs. Not all expressions and symbols will be used, and you may use an expression and/or symbol twice.

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Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.