Chapter 10.7, Problem 18STP

To determine

To choose: The correct option of probability of choosing number $1$ .

Answer to Problem 18STP

The option $B$ is correct.

Explanation of Solution

Given information: Nikki shuffles the cards and choose one card at random.she repeats the process several times and recorded the result in the table.

Calculation: Nikki shuffles the cards and choose one card at random.she repeats the process several times and recorded the result in the table.

Total outcomes $=6+4+5+3+7=25$ .

Number of favourable outcomes $=6$ .

  $\mathrm{P}(\mathrm{event})=\frac{\mathrm{number}\mathrm{of}\mathrm{favourable}\mathrm{outcomes}}{\mathrm{number}\mathrm{of}\mathrm{total}\mathrm{outcomes}}$

  $\begin{array}{l}\mathrm{P}(1)=\frac{6}{25}\\ \mathrm{In}\mathrm{percentage}=\frac{6}{25}\times 100\%=6\times 4\%=24\%\end{array}$

Thus, the option $B$ is correct.