I'll medal and Fan. Pleaase help mee ;-;

A survey was conducted among 400 students of age groups 7-12 years and 13-18 years to find their favorite music genre. The students had to select any one genre out of jazz, rock, and pop. Out of the 200 students in the age group 7-12 years who participated in the survey, 142 liked rock or pop music. The total number of students of both age groups who liked jazz was 72.

Using a two-way table, compute the total number of students in the age group 13-18 years who liked rock or pop music.

122
130
142
186

Question

I'll medal and Fan. Pleaase help mee ;-;

A survey was conducted among 400 students of age groups 7-12 years and 13-18 years to find their favorite music genre. The students had to select any one genre out of jazz, rock, and pop. Out of the 200 students in the age group 7-12 years who participated in the survey, 142 liked rock or pop music. The total number of students of both age groups who liked jazz was 72.

Using a two-way table, compute the total number of students in the age group 13-18 years who liked rock or pop music.

122
 130
 142
 186

elise_a18 · Answer

Yes and no. It doesnt matter

elise_a18 · Answer

Can you explain how you got that?

elise_a18 · Answer

I have a feeling you weren't the one that got that answer ;) It's better just to own up to it

er.mohd.amir · Answer

use set theory or Vann Diagram

elise_a18 · Answer

mmm I don't think so. It specifically says two-way table

er.mohd.amir · Answer

n(A union B)=n(A)+n(b)-n(A intersection B)

amistre64 · Answer

id just make the table ...  what have you got so far?

elise_a18 · Answer

@amistre64 I was reporting the guy giving a direct answer. Isn't that against the COC?? I was the one who asked him to explain ;-;

elise_a18 · Answer

that's the thing. I don't know how to lay out this one. I can do the rest if I know how to make the table

amistre64 · Answer

we do not "encourage" direct answers is what your warning was about.

when you say,  direct or not it doesnt matter .... thats not very specific  is all

amistre64 · Answer

well, i start with a box and divide it up into the parts i need, and label it ...

elise_a18 · Answer

How do I label it??? Does the music genres go on top or on the side?? Do the ages go on the top or on the side??????

amistre64 · Answer

A survey was conducted among 400 students of age groups 
   total count is 400


7-12 years and 13-18 years to find their favorite music genre. 
  2 rows or col labeled


The students had to select any one genre out of jazz, rock, and pop. 
  3 rows/col labeled


Out of the 200 students in the age group 7-12 years who participated in the survey, 142 liked rock or pop music. The total number of students of both age groups who liked jazz was 72.

useful information provided

amistre64 · Answer

the table organizes the data, row or col is immaterial.  make a choice and be consistent.

looks like some 2x3 table to me

amistre64 · Answer

this is how id prolly start it

|dw:1432139873929:dw|

elise_a18 · Answer

Okay so I put the 3 music genres on top and age groups on side. 200 and 200 and 400 are on the right"total" section