Final answer:
Assuming independence, the probability that a teenager owns both a laptop and a business is 0.28 or 28%.
Step-by-step explanation:
To calculate the probability that a teenager owns both a laptop and a small business, additional information about the relationship between owning a laptop and owning a business is required. If the two events are independent, you would multiply the probabilities of each event occurring separately. However, if there is a dependence or if additional information is provided, such as the joint probability or additional conditional probabilities, then the calculation may differ.
Assuming independence (without further information provided), you would calculate:
Probability(Teen owns both a laptop and a business) = Probability(Teen owns a laptop) * Probability(Teen owns a business)
Probability(Teen owns both a laptop and a business) = 0.70 * 0.40
Probability(Teen owns both a laptop and a business) = 0.28
Therefore, if the events are independent, there is a 28% chance that a teenager chosen at random owns both a laptop and a small business.