Question

1. a bag has 3 red, 4 blue, and 5 green chips. what is the probability of selecting a red or blue chip? 3/12 7/12 4/12 5/12

Explanation:

Step1: Find total number of chips

Add the number of red, blue, and green chips: \(3 + 4 + 5 = 12\) total chips.

Step2: Find number of red or blue chips

Add the number of red and blue chips: \(3 + 4 = 7\) chips.

Step3: Calculate probability

Probability is the number of favorable outcomes (red or blue) over total outcomes: \(\frac{7}{12}\).

Answer:

7/12 (corresponding to the option with 7/12)