(i) A coin is tossed thrice and all the eight outcomes are assumed equally likely. State whether events $A$ and $B$ are independent if, $A=$ the first throw results in head, $B=$ the last throw results in tail (ii) A coin is tossed thrice and all the eight outcomes are assumed equally likely. State whether events $A$ and $B$ are independent if, $A=$ the number of heads is odd, $B=$ the number of tails is odd