To get a little more unlikely, you have only about a 1 in 100 chance of developing a brain tumor during your life and a 1 in 102 chance of getting killed in an automobile accident if you live in the US.
更不可能的
,如果你生活在美国,你一生中患
瘤的几率只有 1/100,死于车祸的几率只有 1/102。