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what is your work?

well I've found the median for both groups.

for group one its between 1-2 and 6-7 which is 2 and for group 2 its between 6-7 and 7-8 which is 1

im still pondering on how to appraoch the median, i have an idea ... how did you approach it?

well I used the groups of numbers for the hours in order of the number of students.

would you say that there are 21 students in each group?

yes

21/2 = 10.xxx
so we want the 11th value in each case, right?

yes

what do you mean by case?

group A, group B .. each is a case ...

ah ok

1'm confused

what am 1 supposed to be doing?

sorry 1'm really bad at math

counting of course ..

where does 11 fall?
2+8+1, gets us in the third bar
3+8 , gets us in the second bar

still confused

what did you get for the median?

4.5

okay how?

where did all the decimals come from?

we know 21/2 = 10.xxx so we want the 11th value, the one in the middle
so we count
the decimals are just halfway points so we know where were at instead of saying 4-5 we just have 4.5

ah 1 get i now

so it would be A?

yeah, A is fine for me

Thanks!

yw