Final answer:
Approximately 198 gift certificates are likely to be won if 528 customers spin the wheel.
Step-by-step explanation:
To find the approximate number of gift certificates likely to be won, we can use the concept of probability. Since there are 8 sections on the wheel and 3 of them represent winning a gift certificate, the probability of winning a gift certificate in one spin is 3/8. To find the expected number of gift certificates won, we can multiply this probability by the number of spins (528):
Expected number of gift certificates won = (3/8) * 528 ≈ 198