0 votes 0 votes A fair coin is tossed repeatedly till both head and tail appear at least once. The average number of tosses required is _______ . Probability and Statistics gate2014-ec-3 probability-and-statistics probability expectation numerical-answers + – Milicevic3306 asked Mar 26, 2018 retagged Mar 3, 2021 by Lakshman Bhaiya Milicevic3306 16.0k points 69 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.