Final answer:
The probability that a randomly selected student will be female is 60.3%.
Step-by-step explanation:
To find the probability that a randomly selected student will be female, we need to calculate the proportion of female students in the sample.
First, we add up the total number of female students: 16 female sophomores + 19 female juniors = 35 female students.
Next, we calculate the total number of students in the sample: 12 male sophomores + 16 female sophomores + 11 male juniors + 19 female juniors = 58 students.
Finally, we divide the number of female students (35) by the total number of students (58) to get the probability: 35/58 = 0.603 or 60.3%