We are asked to calculate the fraction of boys taking the Spanish course over the total number of students surveyed, we can do this by dividing the number of boys taking Spanish by the total number of students surveyed.
From the table, we can see that the number of boys taking Spanish is 13, and the total number of boys surveyed is 35, then we get:
Then, the fraction of surveyed boys taking the Spanish course is 0.37 (rounded to the hundredth)