Comparing Data in Dot Plots

Master dot plots: Compare data, find median & range. Fun 7th-grade math practice!

Name: A researcher conducted a recent study to examine the time differences between boys and girls on a certain task. He gave each study participant the same task to complete and timed each person. He noted the time in minutes for each person and then created the following plots to show the time it took for each boy and girl in the study to complete the task. Use the dot plots to answer the questions below. Type your answer in the blanks provided. Round your answers to the nearest tenth, if needed. How many boys participated in the study? 14 What is the median time for boys to complete the task? 9What is the range of the boys' completion time? 10How many girls participated in the study? 15What is the median time for girls to complete the task? 7What is the range of the girls' completion time? 10How does the range of the times for the groups compare? They are the sameWhich group has a faster task completion time? The girls Sort the description cards below into two groups: those that best describe the Rockets team and those that best describe the Spurs team. Houston Rockets The range in player heights is 12 inches. According to the data in the dot plot, there are 17 team members. The median and the mode are the same for this data set. More than twice as many players are 81 inches tall as compared to 79 inches tall. The mode player height is 81 inches. San Antonio Spurs The median player height is 79 inches. No one on this team is 7 feet tall. The tallest player is 6 feet 11 inches tall. The median and the mean are the same for this data set. Less than half as many players are 81 inches tall as compared to 83 inches tall. About 73% of the players on this team are at least 6.5 feet tall.