Will give medal! The following histograms show the average number of hours two groups of students spend cycling every week:

- anonymous

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- anonymous

##### 1 Attachment

- anonymous

Which statement best compares the median number of hours that the two groups of students spend cycling every week?
Median is between 4 and 5 hours for both groups.
Median is between 5 and 6 hours for both groups.
Median for group A is significantly less than the median for group B.
Median for group A is significantly greater than the median for group B.

- anonymous

@Hero

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## More answers

- anonymous

@amistre64

- anonymous

@jagr2713

- amistre64

what is your work?

- anonymous

well I've found the median for both groups.

- anonymous

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

- amistre64

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

- anonymous

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

- amistre64

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

- anonymous

##### 1 Attachment

- anonymous

yes

- amistre64

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

- anonymous

yes

- amistre64

start from the left, and count up and then over and up until we get to the 11th position
what is our values for each case?

- anonymous

what do you mean by case?

- amistre64

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

- anonymous

ah ok

- anonymous

1'm confused

- anonymous

what am 1 supposed to be doing?

- anonymous

sorry 1'm really bad at math

- amistre64

counting of course ..

- amistre64

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

- anonymous

still confused

- anonymous

what did you get for the median?

- amistre64

4.5

- anonymous

okay how?

- amistre64

A
1.5 1
1.5 2
3.5 3
3.5 4
3.5 5
3.5 6
3.5 7
3.5 8
3.5 9
3.5 0
4.5 1 <<<<<
4.5 0
4.5 9
4.5 8
4.5 7
5.5 6
5.5 5
5.5 4
5.5 3
6.5 2
6.5 1
B
3.5 1
3.5 2
3.5 3
4.5 4
4.5 5
4.5 6
4.5 7
4.5 8
4.5 9
4.5 0
4.5 1 <<<<<
4.5 0
5.5 9
5.5 8
5.5 7
5.5 6
5.5 5
5.5 4
5.5 3
6.5 2
7.5 1

- anonymous

where did all the decimals come from?

- amistre64

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

##### 2 Attachments

- anonymous

ah 1 get i now

- anonymous

so it would be A?

- amistre64

yeah, A is fine for me

- anonymous

Thanks!

- amistre64

yw

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