Consider the following to answer the question(s) below:
During its grand opening week, Stickler's bicycle shop offers a "wheel of discount savings." After customers select the items they wish to purchase, they spin the wheel to determine the discount they will receive. The wheel is divided into 12 slices. Six slices are red and award a 10% discount, three slices are white and award a 20% discount, and two slices are blue and award a 40% discount. The remaining slice is gold and awards a 100% discount!
-The probability that two customers in a row get a 20% discount is
A) 3/12.
B) 2/12.
C) 0.0625.
D) 9/12.
E) 10/12.

Question

Consider the following to answer the question(s) below:
During its grand opening week, Stickler's bicycle shop offers a "wheel of discount savings." After customers select the items they wish to purchase, they spin the wheel to determine the discount they will receive. The wheel is divided into 12 slices. Six slices are red and award a 10% discount, three slices are white and award a 20% discount, and two slices are blue and award a 40% discount. The remaining slice is gold and awards a 100% discount! 
-The probability that two customers in a row get a 20% discount is
A) 3/12. 
B) 2/12. 
C) 0.0625. 
D) 9/12. 
E) 10/12.

Quizplus · Accepted Answer

The probability of one customer getting a 20% discount is 3/12, and since the discount for each customer is independent of the other, the probability of two customers in a row getting the 20% discount is (3/12) x (3/12) = 9/144 = 0.0625. Therefore, the answer is C.

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