To find the probability of drawing a piece of paper with a number less than 9 from the numbers 1 through 15, we first identify how many numbers are less than 9. The numbers less than 9 are: 1, 2, 3, 4, 5, 6, 7, and 8. There are a total of 8 numbers that meet this criterion.
Next, we determine the total number of pieces of paper, which is 15 (one for each number from 1 to 15).
The probability of drawing a number less than 9 is calculated as the number of favorable outcomes (numbers less than 9) divided by the total number of outcomes (total numbers):
\[ \text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total outcomes}} = \frac{8}{15} \]
Thus, the probability of drawing a piece of paper with a number less than 9 is \(\frac{8}{15}\).
The correct answer is:
8/15