What does the number outside a venn diagram but inside the rectangle mean?

Question

misty1212 · Answer

HI!!

misty1212 · Answer

it means it is in the "universal set" but not in the set labelled in the venn diagram
you got an example?

anonymous · Answer

http://gyazo.com/6a125510f0341a80d062c9f95f05bd96

misty1212 · Answer

btw the whole set up is the "venn diagram" not just the circles

misty1212 · Answer

that means than (i guess, there are no words involved) that 7 people have no sisters or brothers
they are just lonely only children

misty1212 · Answer

the way i interpret it is that 10 have sisters and brothers, 
5 have brothers only 
8 have sisters only and 
7 have neither brothers or sisters

anonymous · Answer

given the venn diagram what is the probability that a person is an only child or only has sisters?

anonymous · Answer

@misty1212

misty1212 · Answer

so the 7 is the only children right?

anonymous · Answer

Im guessing so?

misty1212 · Answer

yea, and how many have only sisters?

anonymous · Answer

8

misty1212 · Answer

for a total of how many only child or sister only?
i.e. what is $7+8$?

anonymous · Answer

15

misty1212 · Answer

ok that will go in the top of our fraction
now how many people are there total (add up all the numbers)

anonymous · Answer

30

misty1212 · Answer

k good so 
$$\frac{15}{30}$$but reduce that

anonymous · Answer

http://gyazo.com/0c7ac34dde63abe6c03b35bc7c17363d @misty1212 Is that right?

misty1212 · Answer

you need to do 
$$2\times 3\times 4$$

anonymous · Answer

24 sweet

misty1212 · Answer

yeah always pick C

anonymous · Answer

http://gyazo.com/fc86588ccf196ef23d4d0084b52a9de3 @misty1212

misty1212 · Answer

two out of 3
or i guess $.67$ rounded

anonymous · Answer

http://gyazo.com/29cb0b746bdfa7ac4469b45477065075

anonymous · Answer

@misty1212

misty1212 · Answer

how many like art total?

anonymous · Answer

13

misty1212 · Answer

hmm no

anonymous · Answer

7 then

misty1212 · Answer

lol

misty1212 · Answer

add up all the numbers in the art circle
there are three of them

anonymous · Answer

17

misty1212 · Answer

ok whew

misty1212 · Answer

of those 17, how many are also in the circle labeled music?

anonymous · Answer

10

misty1212 · Answer

ok so 
$$\frac{10}{17}$$ is your answer

anonymous · Answer

You are awesome.

misty1212 · Answer

$$\color\magenta\heartsuit$$

anonymous · Answer

http://gyazo.com/bd01f8bc81ed2a8b780b4551178fab29

misty1212 · Answer

the middle path only goes to the pumpkin, no where else 
so it is certain
the certain event has probability 1

anonymous · Answer

Thats the answer?

misty1212 · Answer

no i am trying to trick you

misty1212 · Answer

jk yes, that is the answer!

misty1212 · Answer

some sort of on line probability class? or just on line homework?

anonymous · Answer

http://gyazo.com/67ff70b4a09755ebba2ef9d6040eaf99

anonymous · Answer

Online course (I just came from work and my brain is dry atm. I know how to do most of this I just dont want to get something I know wrong.

anonymous · Answer

Is it 1/3?

misty1212 · Answer

lol this one would be harder but they have given you all the numbers you need, but it is not $\frac{1}{3}$

anonymous · Answer

Oh wait 2/3?

misty1212 · Answer

add up all the numbers by the pumpkins

mathstudent55 · Answer

Add the probabilities of pumpkins.

mathstudent55 · Answer

Correct.

misty1212 · Answer

yes it is $\frac{2}{3}$ when you add them

anonymous · Answer

http://gyazo.com/aa99a22f5098d9577e06b92fd066cefe is it 1/7 = .14?

anonymous · Answer

@misty1212

misty1212 · Answer

how you gonna get two greens?

anonymous · Answer

Wait I'm lost. There is only one green.

misty1212 · Answer

right
so how can you get two?

anonymous · Answer

By rollling twice?

misty1212 · Answer

that just means it is impossible
i hope one of the choices is zero

misty1212 · Answer

by rolling twice lol
yeah or by reaching in and picking out the green, then doing it again
no, the answer is you cannot, so the probability is zero

anonymous · Answer

It's a fill in the blank this is what I put: If your only allowed to role each of the jars once, you can only get green once, therefore making it impossible to get two green.

misty1212 · Answer

looks good to me
where do you work?

anonymous · Answer

Publix

misty1212 · Answer

i guess i asked, didn't i?

anonymous · Answer

Wait what? lol

misty1212 · Answer

ooh it is a grocer in NC?

misty1212 · Answer

all over the south i see

anonymous · Answer

Yes it is a grocery in the south. :P http://gyazo.com/54c7c708ce725f0361502280560d56de Last one

misty1212 · Answer

i would guess $.27$ because the other one is a motorcycle accident

anonymous · Answer

Thats not one of the choices.

misty1212 · Answer

ok then try 
$$.65\times .27$$

anonymous · Answer

it's .25 you have to add all accidents and divide by 4. = 1/4 = .25

misty1212 · Answer

i disagree

anonymous · Answer

That was one of the choices, oh well I submitted my work lol

misty1212 · Answer

you are already male
with probability $.65$ you own a car, and if so with probability $.27$ you get in an accident so it should be$.65\times .27=.1755$

misty1212 · Answer

good luck, sure yo udid ok

anonymous · Answer

WAIT flutter you're right.