here are 20 accidents randomly selected. Thus, there are a fixed number of n =? trials, so the first condition ---Select--- is is not satisfied. In an auto accident, either a single vehicle or multiple vehicles are involved, so the second condition ---Select--- is is not satisfied. The 20 accidents were randomly selected, implying they ---Select--- are are not independent, so the third condition ---Select--- is is not satisfied.Let x represent the event that an auto accident involves a single vehicle and let p represent the population proportion of accidents involving a single vehicle. It is given that 7 in 10 auto accidents involve a single vehicle, giving a probability of p = , and the fourth condition ---Select--- is is not satisfied.Therefore, the binomial distribution ---Select--- can cannot be used.