1. **State the problem:** We need to find the theoretical probability that the spinner lands on a section with a star. 2. **Understand the spinner:** The spinner is divided into 8 equal sections. 3. **Count the favorable outcomes:** There are 3 sections with stars. 4. **Formula for probability:** The theoretical probability $P$ of an event is given by $$P = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$$ 5. **Apply the formula:** $$P = \frac{3}{8}$$ 6. **Interpretation:** This means the spinner has a $\frac{3}{8}$ chance of landing on a star section each spin. **Final answer:** $\frac{3}{8}$