According to studies, 62% percent of online teenagers are Facebook users, while 51% are use Twitter.43% are both Facebook and Twitter users.Are the two events-uses Facebook and uses Twitter-statistically independent?

Question

Quizplus · Accepted Answer

To determine if two events are statistically independent, the probability of one event occurring given that the other has occurred should be the same as the probability of it occurring regardless. Here, P(Facebook given Twitter) = P(Facebook and Twitter) / P(Twitter) = 43% / 51%, which is not equal to P(Facebook) = 62%. Therefore, the events are not independent.

According to Studies, 62% Percent of Online Teenagers Are Facebook