Question

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!What is the probability that a customer gets at least a 40% discount?a. 2/12b. 3/12c. 10/12d. 9/12e. 0.0625

Answer 1

Answer:

3/12 (B)

Step-by-step explanation:

Total number of slices = 12

Number of Red slices = 6

Number of slices that offer 10% discount = 6

Number of white slices = 3

Number of slices that offer 20% discount = 3

Number of blue slices = 2

Number of slices that offer 40% discount = 2

Number of gold slices = 1

Number of slices that offer 100% discount = 1

Probability of getting 10% discount = 6/12 = 1/2

Probability of getting 20% discount = 3/12 = 1/4

Probability of getting 40% discount = 2/12 = 1/6

Probability of getting 100% discount = 1/12 = 1/12

Probability of getting at least 40% discount = Pr of getting 40% discount + Pr of getting 100% discount

= 1/6 + 1/12

= (2 + 1)/12

= 3/12(B)