Should be C. 1/19. because if there's 20 maebles in the bag and without replacing the marble then it actually would be 2/18
Answer:
Option A.
Step-by-step explanation:
It is given that a sponsored link was delivered 100 times and 10 people clicked on it.
Number of impressions = 100
Number of clicks = 10
The formula for click-through-rate (CTR) is



The click-through-rate (CTR) would be 10%. Therefore, the correct option is A.
You should know that simply your answer