Final answer:
To find the experimental probability, calculate the ratio of the number of defective microchips to the total number of microchips inspected.
Step-by-step explanation:
To find the experimental probability that the next microchip he inspects will be defective, we need to calculate the ratio of the number of defective microchips to the total number of microchips inspected.
Since the inspector noticed that 2 of the last 30 microchips inspected were defective, the experimental probability can be calculated as:
Experimental Probability = Number of Defective Microchips / Total Number of Microchips Inspected
Experimental Probability = 2 / 30
Therefore, the experimental probability that the next microchip he inspects will be defective is 1/15 (c).