2). A fair coin is flipped twice. H is recorded for heads and T for tails after each flip. The notation for conditional probability is ​P(H on 2nd flip∣∣H on 1st flip)​. Which notation is the probability of the two events being not independent?

​P(H on 2nd flip∣∣H on 1st flip)=P(H on 2nd flip)P(H on 1st flip)​​ ​

​ ​ ​P(H on 2nd flip∣∣H on 1st flip)=P(H on 1st flipandH on 2nd flip)P(H on 1st flip)​​ ​

​ ​P(H on 2nd flip∣∣H on 1st flip)=P(H on 1st flip)P(H on 2nd flip)​ ​

​ ​P(H on 2nd flip∣∣H on 1st flip)=P(H on 2nd flip)​​