Expected Flips to Get Two Heads
Easy probability interview practice: Expected Flips to Get Two Heads.
When flipping a fair coin repeatedly, what is the expected number of flips needed to obtain a total of 2 heads (not necessarily consecutive)?
Easy probability interview practice: Expected Flips to Get Two Heads.
When flipping a fair coin repeatedly, what is the expected number of flips needed to obtain a total of 2 heads (not necessarily consecutive)?