Final answer:
The provided information does not directly answer the question regarding the number of Americans who drive with a cold; further, there are several reasons why polls might give different results including sample size, sampling method, and timing.
Step-by-step explanation:
The question seeks to ascertain the number of Americans who drive each day while having a cold. However, the information provided does not directly answer this question, and as such, without specific data relating to this query, it would be incorrect to provide an answer.
Instead, let's consider three reasons why polls on such topics might yield different results. Firstly, the sample size is critical; 76 Americans surveyed is a very small number compared to the entire population and may not represent the broader demographics. Secondly, sampling method could influence outcomes; a random versus a targeted sample could lead to variations in results. Thirdly, the timing of the survey might affect results; for instance, if conducted during a season with lower cold prevalence, diagnosed cases may appear reduced.