In your own words:
In question 1B on the far bottom: How can we determine which leg length was selected for? What has caused this shift to occur?
1 answer
In question 1B, we can determine which leg length was selected for by analyzing the data and observing which leg length predominately appears in the selection. The shift in selecting a specific leg length may have been caused by various factors such as changes in fashion trends, new research on biomechanics and performance, or feedback from customers and athletes. Additionally, advancements in technology and materials used in manufacturing may have influenced the shift towards a particular leg length.