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TY - CHAP
TI - The Solutions
A2 - Nahin, Paul J.
AB - Suppose there are*m*people in your survey and that we let Y denote the total number of YES answers. With probability$\frac{1}{2}$, the coin shows tails on the first flip, so$\frac{1}{2}m$people will answer the EQ. (This argument is implicitly assuming that*m*is large.) For the other$\frac{1}{2}m$people, who flip the coin a second time, half will answer YES (the second flip showed heads) and half will answer NO (the second flip did not show heads). That is,$\frac{1}{4}m$YES answers are for the non-EQ. So,$Y - \frac{1}{4}m$YES answers are for the EQ, generated from

EP - 174
PB - Princeton University Press
PY - 2000
SN - 9780691155005
SP - 81
T2 - Duelling Idiots and Other Probability Puzzlers
UR - www.jstor.org/stable/j.ctt7ssjr.8
Y2 - 2020/07/16/
ER -