Answer:
The correct answer is (D)
Step-by-step explanation:
Given the events X and Y:
X = the price of stock X has increased
Y = the price of stock Y has increased
That means that the complement of these events are:
X' = the price of stock X has not increased
Y' = the price of stock Y has not increased
Hence, the event "the price of stock X has increased and the price of stock Y has not increased" may be written as:
X ∩ Y′
