You were told that the 1st, 2nd and 3rd quartiles of female students' weight at a major university are 125 lbs, 138lbs, and 147lbs. what percentage of students weigh more than 138lbs?

Quartiles divide a dataset into 4 groups. The first quartile is the 25th percentile and has 25% of the values below it. The seond quartile, on the other hand, is the median or the 50th percentile with 50% of values below it; meanwhile, the third quartile has 75% of values below it.

Since we know that 138 lbs is the second quartile, then we can say that it is the median of the dataset. Therefore, there will be 50% of the sutdents who will weigh more than 138 lbs.

B. 2 1/2 feet. multiply 2.5 inches by 12 to get thirty inches then divide by 12 to get 2.5 feet