Question

kindly help last q

Answer 1

@BangkokGarrett

Answer 2

@BlackLabel

Answer 3

here is one thats not stolen yet @BlackLabel :P

Answer 4

LMAOO okkk lemme think this one over

Answer 5

ty :) it looks hard to me... we need to use normal/binomial distribution it seems

Answer 6

Ok lets use a Binomial distribution
n=3,000,000
y=35
p=.00001

Answer 7

We need to find P(X>35)

Answer 8

yess

Answer 9

Hmmm are you allowed to use a statistics program to help you solve this? Or do you have to do this by hand?

Answer 10

P(x=35) = \(^{3,000,000}C_{35} (0.00001)^{35}(0.99999)^{3,000,000-35}\)

Answer 11

software is okay to use... but i dont have anything installed yet...

Answer 12

That equation is correct for P(X=35)
But we need to find of P(X>35)

Answer 13

so unless you wanna compute the binomial distribution 35 times I thinkk we would be better off using a program. Let me find you smth online

Answer 14

I am thinking if we can find for <= 35, then we can subtract it from 1 or something

Answer 15

Yes we definitely have to do that

Answer 16

ohk thanks again :) ... i dont wana do it 35 times lol...

Answer 17

\[P(X>35)=1-P(X \leq 35)\]

Answer 18

yess <= 35 is also lot of work if we have to by hand... i think this is supposed to be done using software oly

Answer 19

Yup so wait Im just trying to remember the program I used back in the day give me a sec

Answer 20

they gave some link in the lecture notes ... sorry i thought it wasnt useful.... let me pull up and give u the link... one sec

Answer 21

sorry that link is not opening... looks its broken

Answer 22

http://bitly.com/dist_calc

Answer 23

its not working :|

Answer 24

Sorryyy my internet kicked me out. Lemme look again

Answer 25

thanks for staying and helping me :)

Answer 26

http://www.cengagebrain.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9780495110811&token=

Answer 27

@rational help

Answer 28

awwww no Binomial Distribution But this link may be helpful
On the right and side you should see the word applet. Click on that and the chapters and you will find these programs extremely helpful throughout out the course

Answer 29

wow ! it looks like a good resource xD
for this i think i can use normal distribution also ?

Answer 30

Nope since it doesnt say its normally distributed so we cant use the normal distribution. At least I was told that I can only use the normal distribution when it says so in the question

Answer 31

http://stattrek.com/online-calculator/binomial.aspx#cumprob

Answer 32

ohhk... that makes sense :)

Answer 33

Ughhhhhh didnt work I got 0 as my answer

Answer 34

oh it is giving me some different answer

Answer 35

it says p(x>35) = 0.158 but thats not found in options :(

Answer 36

It says choose closest answer

Answer 37

ahh yes 0.18 ?

Answer 38

That is what I would assume

Answer 39

ty :) im submitting.. one sec

Answer 40

Okkk do you get the answer on the spot?

Answer 41

yayy ! we're right xD

Answer 42

yes

Answer 43

AWWW YEAAAAAAAAAAAAA :DDDDD

Answer 44

you're awesome thanks a lot :))

Answer 45

hmmmm they calculated it differently now I gotta figure out who they got that ... :D

Answer 46

let me knw too once u crack it... this is too heavy for me make sense of it lol :]

Answer 47

Its basically instead of doing all the computations or using a software like we used we can approximate the binomial distribution using the Normal distribution

Answer 48

I see.. but what exactly they're doing in the calculation ?
i get that they're checking whether mean is > 10 or not.. but other than that i couldnt comprehend much their method...