Question

If a coin is tossed 100 times out of which 65 times we get head and 35 times tail probability that of not getting a tail is

Answer 1

$$\begin{gathered} \mathrm{Number}\mathrm{of}\mathrm{time}\mathrm{head}\mathrm{ocurrs}=65 \\ \mathrm{Number}\mathrm{of}\mathrm{times}\mathrm{tail}\mathrm{ocurrs}=35 \\ \mathrm{Number}\mathrm{of}\mathrm{favourable}\mathrm{outcomes}=65 \\ \mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{possible}\mathrm{outcomes}=100 \\ \mathrm{Required}\mathrm{probability}=\frac{\mathrm{Number}\mathrm{of}\mathrm{favourable}\mathrm{outcomes}}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{possible}\mathrm{outcomes}} \\ =\frac{65}{100} \\ =0.65 \end{gathered}$$