Question

A coin is weighted so that head is twice as likely to appear as tail. When such a coin is tossed once the probability of getting tail is

• A. $\frac{1}{2}$
• B. $\frac{1}{3}$
• C. $\frac{2}{3}$
• D. $\frac{1}{4}$

Answer 1

The correct option is B $\frac{1}{3}$

Let's say if we are obtaining tail $x$ times then head will come for $2x$ times.
so the probability of obtaining tail $=\frac{1}{3}$