+308 The stem-and-leaf plot shows the number of minutes and seconds of one ride on each of the 17 top-rated roller coasters in the world. In the stem-and-leaf plot, 2 20 represents 2 minutes, 20 seconds, which is the same as 140 seconds. What is the median of this data set? Express your answer in seconds.
+220 If you look at the plot, there are 17 values. The middle value would be the 9th one. The 9th value listed is 2 minutes and 43 seconds. That is 163 seconds.
