Question

A number is chosen from 1 to 15. Find the probability that the number chosen is a composite number.

• A. $\frac{1}{5}$
• B. $\frac{7}{5}$
• C. $\frac{2}{5}$
• D. $\frac{8}{15}$

Answer 1

The correct option is D $\frac{8}{15}$

Total no. of numbers $=$ $15$
No. of composite number $=$ $15$ (no. of prime no.) $=$ $8$
Probability $=\frac{8}{15}$