A recent survey in Montana revealed that 54% of the vehicles traveling on highways, where speed limits are posted at 70 miles per hour, were exceeding the limit. Suppose you randomly record the speeds of 12 vehicles traveling on US 131 where the speed limit is 70 miles per hour. LetXdenote the number of vehicles that were exceeding the speed limit. Find the probability of at least 7 vehicles exceeding the limit, .(report your answer to 4 decimal places)