The probability that the next customer that selects a frame from the store selects a gold frame is 1/2.
Probability determines the likelihood that an event would happen. The chances the event occurs is 1 and the chances that the event does not occur is 0.
The probability that the next customer chooses a gold frame = number of customers that choose a gold frame / total number of customers
45 / (45 + 30 + 15)
= 45 / 90
= 1/2
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