Relative tables help!

- bobobox

Relative tables help!

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- bobobox

@jim_thompson5910

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- bobobox

@jim_thompson5910

- jim_thompson5910

sorry I was working on a spreadsheet for this

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## More answers

- bobobox

Yeah thats okay as long as I learn and get it right!

- jim_thompson5910

ok do you know how to calculate conditional relative frequencies?

- bobobox

Nope Thats why I need you

- jim_thompson5910

you need to calculate conditional relative frequencies with respect to the columns
so what you do is divide everything in column 1 by 280 (since this is the total)
divide everything in column 2 by 210
divide everything in column 3 by 100
etc etc

- bobobox

okay

- bobobox

one second let my make a spreadsheet

- jim_thompson5910

sure thing

- bobobox

@jim_thompson5910

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- jim_thompson5910

you should have divided the last row by itself, but that doesn't matter really

- jim_thompson5910

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- bobobox

okay

- jim_thompson5910

focus on the pop column
what is the difference in proportion between male and female?

- bobobox

i hear the word difference it make me want to subtract

- jim_thompson5910

yep you subtract

- bobobox

0.4285146

- jim_thompson5910

now do the same for rap

- bobobox

okay

- bobobox

0.6

- jim_thompson5910

which difference is larger

- bobobox

rap

- jim_thompson5910

so according to this
http://mathbitsnotebook.com/Algebra1/StatisticsReg/ST2TwoWayTable.html
it says `The bigger the differences in the conditional relative frequencies, the stronger the association between the variables`

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- bobobox

okay

- bobobox

im sorry do you think you oculd simplify that for me?

- jim_thompson5910

The larger difference in rap means that more males like rap than females. So this is considered positive association.

- jim_thompson5910

If the two conditional relative frequencies were nearly identical, then there would be weak to no association (ie the two would be independent)

- jim_thompson5910

this tells us the variables are connected in some way

- bobobox

okay so would it be d or are we not close to the answer yet... thats my guess becuase it discusses rap

- jim_thompson5910

yeah I'm thinking D as well because of the largest difference

- bobobox

we have to be positive with all of the answers

- bobobox

i can't have any slip ups

- bobobox

are we ready for me to submit the assignment? If I get under 70 I won't be able to take my final exam

- jim_thompson5910

I'm pretty sure, but others can chime in too if they want

- bobobox

I am going to submit, It will tell me the answers instantly

- UsukiDoll

@bobobox do you find out the answer right away or does that take a while?

- bobobox

@UsukiDoll The answer was Correct!!!!!!

- UsukiDoll

that's good! :D

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