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SSAT Upper Level
Quantitative (Math)

Probability of Selecting a Defective Laptop

Medium Data Analysis And Probability Probability

A shipment contains 200 electronics, including 120 laptops and 80 tablets. If a minor defect occurs in a random selection of these electronics, the probability that the defect is found in a laptop is given by the ratio of laptops to the total electronics.

If 5% of the laptops and 10% of the tablets are defective, and you randomly choose one defective item, what is the probability that the item is a laptop?

Hint

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