B 2: Explanations of Central Tendency Measures

Assume youre doing research on diets. Youve run a study that compares the effectiveness of two diet plans. The mean weight loss for both distributions is identical, meaning they have the same mean. For one distribution (Diet Plan A), the weight loss scores are clustered within a narrow range around the mean. For the other one (Diet Plan B), the scores are much more widely dispersed. What does the dispersion of scores imply about weight loss on the two diets?