Question

If a new fair coin is tossed, what are the odds in favor of getting a tail and the odds against it?

• A. $1:3$ and $3:1$
• B. $2:1$ and $1:2$
• C. $1:2$ and $2:1$
• D. $1:1$ and $1:1$

Answer 1

The correct option is D $1:1$ and $1:1$

Number of ways of seeing head $=1$
Number of ways of seeing tail$=1$

$\therefore$ Odds in favor of getting tails
$=\frac{\text{Number of favorable outcome}}{\text{Number of unfavorable outcome}}=1:1$

Odds against getting tails $=\frac{\text{Number of unfavorable outcome}}{\text{Number of favorable outcome}}=1:1$