Question

There are $13$ tickets numbered $1$ to $13$. If a ticket is randomly selected, find the probability that the outcome is a composite number.

• A. $\frac{7}{13}$
• B. $\frac{8}{13}$
• C. $\frac{9}{13}$
• D. $\frac{6}{13}$

Answer 1

The correct option is D $\frac{6}{13}$

Sample space$=(1,2,3,4,5,6,7,8,9,10,11,12,13)$

Number of composite numbers from $1to13=6$

$P\left(A\right)$$=\frac{\text{no. of possible outcomes}}{\text{No. of total outcomes}}$

$=\frac{6}{13}$