Question 151265
Although there are a lot of numbers, this question is a fairly straightforward problem. The mean is just the average of the numbers. To find the average of any list, you just add up the numbers and divide that by the amount of numbers in the list.
<br> Since you know that five test vehicles were crashed for each type of vehicle,  the amount of numbers will be 5.
<br> The crash damages for the Goliath are averaged in this equation:
(1600 + 760 + 880 + 1950 + 1220)/5
= 6410/5
= 1282
<br> The crash damages for the Varmint are averaged in this equation:
(1290 + 1400 + 1390 + 1850 + 950)/5
= 6880/5
= 1376
<br> The crash damages for the Weasel are averaged in this equation:
(1090 + 2100 + 1830 + 1250 + 1920)/5
= 8190/5
= 1638
<br> Therefore, the mean crash damages are not the same. As it turns out, the information about crashing into a barrier at 5 mph was irrelevant to the question.