Final answer:
The question seeks the probability of a participant's first vehicle having eight cylinders or being a truck. Specific individual probabilities are necessary to calculate P(E or T), but they were not provided, thus we cannot select a correct answer from the given options.
Step-by-step explanation:
The question is asking to find the probability that a randomly selected survey participant's first motor vehicle had either eight cylinders (event E) or was a truck (event T), denoted as P(E or T). To calculate P(E or T), one would typically use the formula P(E or T) = P(E) + P(T) - P(E and T), where P(E and T) is the probability that both events occur simultaneously. However, the provided information does not include the individual probabilities of E and T, nor does it state the probability of their intersection (E and T).
Without the specific probabilities or additional data, we are unable to calculate P(E or T), and therefore cannot confidently select an answer from options (A) 0.03, (B) 0.14, (C) 0.17, or (D) 0.28. To answer this question correctly, we would need to know the individual probabilities of E, T, and the probability that E and T occur together.