求助英文解答题--强人来一个英文图表:Actuarial table:frequency of driver accidents中内容是:Age range Accidents per year Accidents per million kilometres Men Women Men Women18-22 0.28 0.16 24 27How many kilometers approximately does the average 18-22 year old woman drive per year?A) 4,884 km B) 4,929 km C) 5,246 km D) 5,624 km E) 5,926 km最后答案是E,百思不得其解,请强人帮助,感激不尽
问题描述:
求助英文解答题--强人来
一个英文图表:Actuarial table:frequency of driver accidents中内容是:
Age range Accidents per year Accidents per million kilometres
Men Women Men Women
18-22 0.28 0.16 24 27
How many kilometers approximately does the average 18-22 year old woman drive per year?
A) 4,884 km B) 4,929 km C) 5,246 km D) 5,624 km E) 5,926 km
最后答案是E,百思不得其解,请强人帮助,感激不尽
答
0.16*1000/27 即使答案E
你的图表不清楚
意思
对18-22的女人来说
27 Accidents per million kilometres
实际是0.16 Accidents
答
accident/year除以accident/kilometer等于kilometer/year
但条件给出的是accident/million kilometers,所以要把27换算成0.000027
0.16除以0.000027等于5925.9,约等于5926