Question

Difficulty: HARD. Will Medal.

A sack of 10 balls has 1 red ball. I choose 3 balls. What is the probability that my 3 balls are not red?

Answer 1

All of them are red.

Answer 2

what do you think? @mhchen

Answer 3

1 out of 10 % lol

Answer 4

What do I think the answer is? (likeabosss im watching u) Since this is a hyper-geometric distribution. I used the
P(X=x) = nCr(1,1)*nCr(9,2)/nCr(10,3) = 3/10 = 0.3 However the answer key is 0.271.

Answer 5

ugh, KJsaif now xD

Answer 6

y r u watching me ?

Answer 7

ALL OF THEM ARE RED

Answer 8

@Christopher1448 it said "1" \(\color{Red}{Red~ball}\)

Answer 9

ya but you never know

Answer 10

So....u guys never done hypergeometric distributions I'm guessing? :o

Answer 11

10% most likely

Answer 12

1 of 10%

Answer 13

^^

Answer 14

The answer is 0.271 :b (like I said already)

Didn't show the procees.

Answer 15

o.O oh..............................

Answer 16

oh

Answer 17

Okay, method 2: Find the complement. (let me calculate)

Answer 18

....................

Answer 19

@JoshMorris

Answer 20

forget it, I'll repost and tag some college kid probs

Answer 21

I'm typing medal just in case

Answer 22

cuz it's a rigged system

Answer 23

Hi hip hop girl

Answer 24

Chris it still wont let me write u whats wrong with your messaging did u accidentally block me

Answer 25

YOUR PRETTY I MEAN PRETTY

Answer 26

no.

Answer 27

wait ill create a question and we can talk there.

Answer 28

@Christopher1448 Why did you block my sister @Jaedyn

Answer 29

i didnt

Answer 30

is she 14.

Answer 31

Yep

Answer 32

oh and i am a fan so ya

Answer 33

are you 16

Answer 34

She said its " This fan doesnt accept messages"

Answer 35

OHH hold on

Answer 36

Ok

Answer 37

@Christopher1448 Um @HipPopGirl Is my girlfriend

Answer 38

... :O :(

Answer 39

ok....

Answer 40

lol

Answer 41

...

Answer 42

i dont think we should talk HipHopGirl....

Answer 43

lol josh dont be mean

Answer 44

why were you calling me cutie when you're taken you should of told me.

Answer 45

plz stop spaming the q

Answer 46

ill set up a new question.

Answer 47

y dont u just pm or chat in the chats boxes huh

Answer 48

it makes more seance

Answer 49

@HipPopGirl Really?

Answer 50

Your cheating on me

Answer 51

I think we should break up

Answer 52

O Josh don't worry you got another gf

Answer 53

?

Answer 54

Her name is I can't not tell you

Answer 55

Bye

Answer 56

Losers

Answer 57

thats rude

Answer 58

What is going on in my question......

Answer 59

O sorry she got mad

Answer 60

b/c @Christopher1448 said your pretty to @HipPopGirl

Answer 61

lol everyone say that idk y but whatever'

Answer 62

your not her bot friend you just her friend u dont like pplz talking to her so you acted like you were her bf

Answer 63

No i wasn't

Answer 64

YES YOU WERE

Answer 65

josh u nvr asked me

Answer 66

^
I

Answer 67

How can a i"cute guy" can be so mean and not truthful

Answer 68

lol u nvr asked me i thought u were just being friendly

Answer 69

so mr.cute guy now what

Answer 70

i really don't know :P

Answer 71

you guys....