Describe a dinner a marathon runner would eat the night before running the Boston Marathon, and give reasons for your food choices.

Sample Response:  The night before the race, Lionel should eat complex carbohydrates because they are a source of long-lasting energy. This includes foods that contain starch, like cereal, bread, pasta, rice, potatoes, or corn.

Explanation:

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.