Guided Practice Connect ©Curriculum Associates, LLC Copying is not permitted.92 Lesson 10 Lesson 10 Understand Proportional Relationships Identifying Proportional Relationships Talk through these problems as a class. Then write your answers below. 12 Compare The graphs below show the number of points you earn in each level of a game. Which games, if any, have a proportional relationship between the number of points you earn and the level of the game? In which game can you earn the most points in Level 2? Explain your answer. Level x y 100 0 50 150 250 350 200 300 2 0 1 3 5 4 N u m b e ro fP o i n t s Game ALevel x y 100 0 50 150 250 350 200 300 2 0 1 3 5 4 N u m b e ro fP o i n t s Game BLevel x y 100 0 50 150 250 350 200 300 2 0 1 3 5

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.