Question

the two - way table shows the number of 7th and 8th graders who participate in school clubs. what is the probability that a student is an 8th grader and that he or she participates in school clubs?
the two - way table:

	7th graders	8th graders
no school clubs	115	108

options: 0.278, 0.152, 0.102, 0.217

Explanation:

Step1: Calculate total student count

$$42 + 115 + 30 + 108 = 295$$

Step2: Identify target group size

Target group: 8th graders in clubs, size = 30

Step3: Compute probability

$$\text{Probability} = \frac{30}{295} \approx 0.152$$

Answer:

0.152