Question

Customers who join a store's rewards program are invited to spin a wheel and earn a prize. The wheel is divided into eight same-sized sections, and three of those sections represent winning a gift certificate. Assuming the wheel is fair, approximately how many gift certificates are likely to be won if 528 customers spin the wheel?

A. 198 gift certificates
B. 176 gift certificates
C. 144 gift certificates
D. 66 gift certificates.

Please show your work and tell me how you figured it out.

Answer 1

A. 198 gift certificates.

Explanation:

The probability of winning on a single spin = 3/8.

Number of expected winners

= 528 * 3/8

= 66 * 3

= 198.