Question

Consider the experiment of tossing a coin until k heads appears. then expected number of tosses is

Answer 1

number of heads = k

Then the minimum number of tosses will be k when in every toss we get head and the maximum number will be infinity.

∴number of tosses ≥ k

Answer 2

$\mathbb{\blue{\huge{Hello\:Sir}}}$

Question:-
consider the experiment of tossing a coin until k heads appears .then expected number of tosses is ...