fig, ax = plt.subplots()
# Add a boxplot for the "Height" column in the DataFrames
ax.boxplot([mens_rowing["Height"], mens_gymnastics["Height"]])
# Add x-axis tick labels:
ax.set_xticklabels(["Rowing", "Gymnastics"])
# Add a y-axis label
ax.set_ylabel("Height (cm)")
plt.show()