Answer
Normal Curve B has the greatest mean.
Work Step by Step
In order to visually identify the mean from a normal distribution graph, we look at where the line of symmetry would occur. If you look at curve B, the line of symmetry tells us that it has a mean of 120. For curve A, the line of symmetry indicates a mean of 110. For curve C, the line of symmetry indicates a mean of 90. Thus, it can be said that Curve B has the highest mean.
