After seeing the dot plot of two teams i.e. Team C and Team D the conclusion that can be drawn regarding the larger mean of the team is that:
Team C is expected to have larger mean since the dots are for the higher values of weights and hence will result in higher mean. whereas for team D the dots or frequencies are for smaller weights and hence will result in a less mean as compared to team C.
Hence, Team C appears to have the larger mean weight.
