The results of two independent surveys are shown in the table below.
Women's Weight
| Group | Sample size | Mean (kilograms) | Standard deviation (kilograms) |
|---|---|---|---|
| X | 1,800 | 65 | 8.0 |
| Y | 1,800 | 65 | 11.3 |
Which statement is supported by the data in the table?
Group X and Group Y have identical distributions.
The distribution of weights in Group Y is more variable than in Group X.
Group X contained the heaviest individual.
The mean for Group X is greater than for Group Y.
