Question

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

Answer 1

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.

Answer 2

@Hero

Answer 3

@amistre64

Answer 4

@jagr2713

Answer 5

what is your work?

Answer 6

well I've found the median for both groups.

Answer 7

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

Answer 8

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

Answer 9

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

Answer 10

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

Answer 11

yes

Answer 12

21/2 = 10.xxx

so we want the 11th value in each case, right?

Answer 13

yes

Answer 14

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?

Answer 15

what do you mean by case?

Answer 16

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

Answer 17

ah ok

Answer 18

1'm confused

Answer 19

what am 1 supposed to be doing?

Answer 20

sorry 1'm really bad at math

Answer 21

counting of course ..

Answer 22

where does 11 fall?

2+8+1, gets us in the third bar

3+8 , gets us in the second bar

Answer 23

still confused

Answer 24

what did you get for the median?

Answer 25

4.5

Answer 26

okay how?

Answer 27

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

Answer 28

where did all the decimals come from?

Answer 29

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

Answer 30

ah 1 get i now

Answer 31

so it would be A?

Answer 32

yeah, A is fine for me

Answer 33

Thanks!

Answer 34

yw