driver base driving decisions on appropximately _____ percent of what they see and approximately _____ percent of what they hear or feel.
Drivers base driving decisions on approximately 90 percent of what they see and 10 percent of what they hear or feel.
Quick Scoop
This is the commonly taught figure in driver education materials, where vision is described as the dominant source of information for safe driving. The wording in your prompt matches the usual multiple-choice answer: 90% / 10%.
Note
The exact percentage is often presented as an educational rule of thumb rather than a precise scientific measurement.