The dot plots below show the distances traveled by two groups of skaters:

Which of the following inferences can be made using the dot plots?
Group X has a higher mean than group Y.
Group Y has a higher mean than group X.
There is no overlap between the data.
The range of each group is different.

Question

The dot plots below show the distances traveled by two groups of skaters:



Which of the following inferences can be made using the dot plots?
Group X has a higher mean than group Y. 
Group Y has a higher mean than group X. 
There is no overlap between the data. 
The range of each group is different.

kpop_fan · Answer

attachment

kpop_fan · Answer

@dakid88 please help

anonymous · Answer

HEY ! :)
which group have more average ?
look at the Group X average :
3*20 + 25 * 7 + 30*1 + 35 * 2 + 40 * 5 / 18 = 60 +175+30+70/18 =235/18
now find Group Y average and find answer !

unklerhaukus · Answer

you can determine  a rough average visually