Let A and B be two possible events of an experiment, such that P(A) = 0.4, P(B) = K and P(AUB) = 0.7
(a) For what value of K are A and B mutually exclusive?
(b) For what value of K are A and B independent?
If F and F he the events​

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false