Question 1207331
<br>
Use the basic definition of probability and use a calculator to find the answers.<br><pre>
                            # of truck and motorcycle accidents     6.9 million + 171,000
  P(truck or motorcycle) = ------------------------------------- = --------------------------------------
                                  total # of accidents              15.4 million + 6.9 million + 171,000

                                                15.4 million + 171,000
  P(not truck) = P(automobile or motorcycle) = --------------------------------------
                                                15.4 million + 6.9 million + 171,000</pre>