Cnnbc recently reported that the mean annual cost of auto insurance is 967 dollars. assume the standard deviation is 207 dollars. you take a simple random sample of 50 auto insurance policies. find the probability that a single randomly selected value is at least 996 dollars. p(x > 996) = find the probability that a sample of size is randomly selected with a mean that is at least 996 dollars. p(m > 996) =