Question

Conditional Probability Help

Answer 1

Exactly.

Answer 2

9

Answer 3

14

Answer 4

how so

Answer 5

@swagmaster47 Shouldn't we just ask him how many people were there in all, and then ask for the people who visited the museum and didn't go to the zoo?

Answer 6

Ugh I don't even think I'm understanding myself...

Answer 7

im a girl

Answer 8

Nope! Only the people who visted the museum.

Answer 9

thats pretty cool how you marked a perfect red oval there

Answer 10

Magic mspaint

Answer 11

Sorry. @Starr_DynastyT :P

Answer 12

...

Answer 13

Paint.net > MS Paint :P

Answer 14

you dont have to apologize @AnswerMyQuestions

Answer 15

;P

Answer 16

Add 9 + 5 @Starr_DynastyT

Answer 17

14

Answer 18

Yes.

Answer 19

who you guys, @AnswerMyQuestions was right before
you need to consider only people that did not visit the zoo

Answer 20

whoa*

Answer 21

I was? :D

Answer 22

ok im really trying to be one place but im getting confused

Answer 23

Yeah, I guess we are confusing her...

Answer 24

@TuringTest You can take over... :P

Answer 25

yes, conditional probability means you only consider the "universe" in which the given event is true is what we need to consider

Answer 26

we know that the people we are concerned about did not visit the zoo, therefor all the people that visited the zoo are not important to he problem, hence we are considering only the first row

Answer 27

ok understanding

Answer 28

http://prntscr.com/5pwt0f

Answer 29

so how many people total did not visit the zoo?

Answer 30

5

Answer 31

?

Answer 32

no
number of people that didn't visit the zoo = people that visited museum and not zoo + people who visited neither museum nor zoo

Answer 33

argh museum

Answer 34

sorry

Answer 35

i subtracted 9 from 14

Answer 36

I don't understand the logic of why you subtracted

Answer 37

wrong one sorry

Answer 38

http://prntscr.com/5pwus2

Answer 39

those are the people that visited the zoo and the museum

Answer 40

i see 9

Answer 41

these are the people who visited the zoo and not the museum
http://prntscr.com/5pwvss

Answer 42

theres 1`4

Answer 43

so how many total visited the zoo?

Answer 44

or 23

Answer 45

23 is correct
and out of those 23 people, how many went to the museum?

Answer 46

14

Answer 47

hi

Answer 48

HEEYYY!!!!

Answer 49

is this the same problem as at the top of the page?

Answer 50

probability that the person visited the museum given that they did not visit the zoo?

Answer 51

Yes it is

Answer 52

this is not really that hard at all
first we find out how many people did NOT visit the zoo by adding \(5+2\) to get \(7\)
out of those 7 we see that 5 visited the museum

Answer 53

then compute the ratio \(\frac{5}{7}\) i guess with a calculator since they want the answer as a percent

Answer 54

71.43%

Answer 55

Yessss!

Answer 56

thats it?

Answer 57

Yep.
You always take what's given to be your denominator in the fraction. Then the area in question as your nominator. Divide to find your %.
I'd be happy to help more if you need it!