1 V 2 v 3 4 5 6 8 9 10 11 12 13 14 Motor Vehicle Accidents During a recent year, there were 12.2 million automobile accidents, 6.8 million truck accidents, and 172,000 motorcycle accidents. Find the following probabilities. Enter your answers as fractions or decimals rounded to 3 decimal places. OO Part 1 of 2 (a) If one accident is selected at random, find the probability that it is either a truck or motorcycle accident. P (truck or motorcycle accident) = DO X olo Part 2 of 2 (b) If one accident is selected at random, find the probability that it is not a truck accident. P (not truck accident) = DO X