People at the state fair were surveyed about which type of lemonade they preferred. The results are shown below. Pink lemonade: 156 males, 72 females
Yellow lemonade: 104 males, 48 females

The events "prefers pink lemonade” and "female” are independent because

P(pink lemonade | female) = P(pink lemonade) = 0.6.
P(female | pink lemonade ) = P(pink lemonade) = 0.3.
P(pink lemonade | female) = 0.3 and P(pink lemonade) = 0.6.
P(female | pink lemonade ) = 0.3 and P(pink lemonade) = 0.6.