Question

Students from two age groups were surveyed to see how they travel to school. Here are the results:

Below age 15—Walk or bike: 87; Bus: 60; Car: 18
Age 15 and above—Walk or bike: 65; Bus: 50; Car: 80

Which of the following is a correct two-way relative frequency table for the data?

Answer 1

Method of Travel to School
Walk/Bike Bus Car Row totals
Below age 15 87 60 18 165
Grades 11-12 65 50 80 195
Column totals 152 110 98 360


Method of Travel to School
Walk/Bike Bus Car Row totals
Below age 15 0.24 0.17 0.05 0.46
Grades 11-12 0.18 0.14 0.22 0.54
Column totals 0.42 0.31 0.27 1


Method of Travel to School
Walk/Bike Bus Car Row totals
Below age 15 0.52 0.36 0.11 1
Grades 11-12 0.33 0.26 0.41 1
Column totals 0.42 0.31 0.27 1


Method of Travel to School
Walk/Bike Bus Car Row totals
Below age 15 0.57 0.55 0.18 0.46
Grades 11-12 0.43 0.45 0.82 0.54
Column totals 1 1 1 1

Answer 2

hay curls, first: do u understand how a 2 way frequency table is supposed to look?

Answer 3

Honestly, I know I sound stupid, but no /:

Answer 4

no, its never dumb to not know something, that's not what i was getting at,

hang on, i'll post a pic, its pretty good at explaining

but better than me solving the problem, is me helping u so u can solve this and other probl;ems is what i was getting at

Answer 5

Thank you (:
That actually makes me feel better about not really knowing (:

Answer 6

so have a read of the attachment below, it kinda explains it, then fire away any questions you have and i'll help u get the right answer after that?

Answer 7

Alrighty hold on(:

Answer 8

so the above one is just a 2 way frequency table

your question wants a 2 way RELATIVE frequency table, so that looks like this:

Answer 9

so have a look at this attachment, as this is the kind of table you're answer should look like... but if you also have a look at your possible answers above, you should be able to identify the standard "2 way frequency table" also

Answer 10

I guess I'm a little confused because I don't really see a difference between these tables /:
They all look the same except the numbers.
So I mean, I guess I would automatically cross out the non decimal data table which is option A.

Answer 11

yep, perfect, it's all about elimination
so A is JUST a "2 way frequency table"
there are no decimals or fractions, just whole numbers

Answer 12

now C
all the rows are adding to 1... that's not what we want, this method is called "Conditionally Relative" ... so not C

Answer 13

so what about D
all the columns are adding to 1 in D... so again, that's not what we want, this one is also "Conditionally Relative" ... so not D

Answer 14

So B ?
By process of elimination (:

Answer 15

perfect! B's the answer
B is the only option where only the bottom right cell is a 1, the rows are all fraction totals, and so are the columns

Answer 16

Can I ask for your help on 2 more questions ? /:

Answer 17

yeah, but shay just msg'd me, so i gotta help her first, then shower and dinner as mums already callin out, will be back on later tonight if u post...?

Answer 18

It's 4;16am where I am /:
So I'll try to stay up lol!

Answer 19

if not, just open a new post, most ppl here are whay berret than me at explaining or understandiong stuff,

Answer 20

lol, it's only 6:15pm here, post and get some rest!

Answer 21

Thank you sm.
You were perfect at explaining!
Wish I could give you more than one message lol.
Message me if you want when you're done eating(: