Question

of 28 students in class, 3 are chosen as representatives. what is the probability of being chosen as a representative?
○ $\frac{1}{9}$
○ $\frac{3}{28}$
○ $\frac{9}{28}$
○ $\frac{25}{28}$

Explanation:

Step1: Recall probability formula

Probability = $\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$

Step2: Identify values

The total number of students is 28 (total number of outcomes), and the number of students chosen as representatives is 3 (number of favorable outcomes).

Step3: Calculate probability

The probability $P=\frac{3}{28}$

Answer:

$\frac{3}{28}$