Final answer:
The average number of pill bugs in one inch is 4 pill bugs, and the average length of one pill bug is 0.25 inches.
Step-by-step explanation:
To find the average number of pill bugs in one inch, we divide the total number of pill bugs by the length of the ruler. In this case, there are 48 pill bugs and the ruler is 12 inches long. Therefore, the average number of pill bugs in one inch is 48 divided by 12, which equals 4 pill bugs per inch.
To find the average length of one pill bug, we divide the length of the ruler by the total number of pill bugs. In this case, the ruler is 12 inches long and there are 48 pill bugs. Therefore, the average length of one pill bug is 12 divided by 48, which equals 0.25 inches.