My math IA is due soon and I was going to focus on weight vs. heigh of jump (grande jete) of ballet dancers. iw as going to take my data from famous dancers and analyse the videos in LoggerPro but I realised that I don't know the scale of the video and each dancer is a different distances from the camera. What should I do? Another idea I had was to look at the height vs. flexibility of a dancer and I could collect the data myself by getting dancers I know to do "sit-and-reach" tests. I would then find the minimum, maximum, median, lower and upper quartile, and IQR. Then I would create a scatte