Answer:
  [tex]\frac{31}{50}[/tex]
Step-by-step explanation:
percentage of graduates with loan = 62%
total sample = 50
Number of student in the sample with student loan
 = (percentage of graduates with loan) x  (total sample)
 = 62% x 50
 = 31
Proportion of student in the sample with student loan = [tex]\frac{31}{50}[/tex]