Hazel has 15 t-shirts and 10 short-sleeve blouses in her wardrobe. What is the relative frequency of her t-shirts?

To find the relative frequency of Hazel's t-shirts, we first need to determine the total number of tops in her wardrobe.

Total number of tops = Number of t-shirts + Number of short-sleeve blouses
Total number of tops = 15 + 10 = 25

Now, we can calculate the relative frequency of Hazel's t-shirts by dividing the number of t-shirts by the total number of tops and then multiplying by 100 to express it as a percentage.

Relative Frequency of t-shirts = (Number of t-shirts / Total number of tops) * 100
Relative Frequency of t-shirts = (15 / 25) * 100
Relative Frequency of t-shirts = 0.6 * 100
Relative Frequency of t-shirts = 60%

Therefore, the relative frequency of Hazel's t-shirts is 60%.