Your Banner Here

   [Show all top banners]

Racheeta
Replies to this thread:
geico 5346 days ago
Racheeta 5344 days ago
khoi_k_khoi_k 5344 days ago

More by Racheeta
What people are reading
Subscribers
Subscribers
[Total Subscribers 2]

poozaree
Shyam Sundar Swonepa
:: Subscribe
Back to: Kurakani General Refresh page to view new replies
 Probability Distribution ? HELP HELP
[VIEWED 5124 TIMES]
SAVE! for ease of future access.
Posted on 09-10-09 3:37 PM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

The manufacurer wishes to copare the taste appeal of a new formula (formula B) with that of the standard formula (formula A) . Each of four judges is given three glasses in a random order, two containing formula A and the other containing formula B. Each judge is asked to state which glas he most enjoyed. suppose that two formulas are equally attractive. Let Y be the number of judges stating a preference for the new formula:
a) Find the probability function for Y
b) what is the probability that at least three of the four judges state a preference for the new formula?
c) Find Expected values of Y
d) Find the variance of Y
 
Posted on 09-10-09 7:29 PM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

If I have understood your question correctly it can be modeled with binomial distribution. 

Part a).
The probability function of Y is:
f(y) = (n choose y)*p^y*(1-p)^(n-y)

where 0 =< y =< 4, n = 4, and probability of choosing new formula (p) = 1/2

Part b).
P( Y => 3) = 1 - P(Y =< 3)

P(Y =< 3) = Summation {f(y)} 

Part c).
E(Y) is mean of Y and mean of binomial distribution is n*p

E(Y) = np

Part d).
Variance of binomial distribution is n*p*(1-p)

Now you plug in the numbers and you should get the answers. I hope that helps... good luck with that!
 
Posted on 09-12-09 5:16 PM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Thank you so much..
I've one confusion here. isn't the probability of choosing new formula would be 1/3 instead of 1/2 ?

Thanks.
 
Posted on 09-12-09 5:45 PM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

I also think that probability of new formula is 1/3, (one new formula and 2 old one)
 

Please Log in! to be able to reply! If you don't have a login, please register here.

YOU CAN ALSO



IN ORDER TO POST!




Within last 60 days
Recommended Popular Threads Controvertial Threads
TPS Re-registration case still pending ..
मन भित्र को पत्रै पत्र!
TPS Work Permit/How long your took?
काेराेना सङ्क्रमणबाट बच्न Immunity बढाउन के के खाने ?How to increase immunity against COVID - 19?
Guess how many vaccines a one year old baby is given
अमेरिकामा बस्ने प्राय जस्तो नेपालीहरु सबै मध्यम बर्गीय अथवा माथि (higher than middle class)
चितवनको होस्टलमा १३ वर्षीया शालिन पोखरेल झुण्डिएको अवस्था - बलात्कार पछि हत्याको शंका - होस्टेलहरु असुरक्षित
Travelling to Nepal - TPS AP- PASSPORT
They are openly permitting undocumented immigrants to participate in federal elections in Arizona now.
ढ्याउ गर्दा दसैँको खसी गनाउच
TPS Reregistration and EAD Approval Timeline.......
nrn citizenship
Morning dharahara
Another Song Playing In My Mind
TPS Renewal Reregistration
WHAT DO YOU GUYS THINK ABOUT THIS?
हेर अमेरिकामा नेपालीहरुको बेज्जत
Does the 180 day auto extension apply for TPS?
जाडो, बा र म……
1974 AD Pinjadako Suga Remixed
NOTE: The opinions here represent the opinions of the individual posters, and not of Sajha.com. It is not possible for sajha.com to monitor all the postings, since sajha.com merely seeks to provide a cyber location for discussing ideas and concerns related to Nepal and the Nepalis. Please send an email to admin@sajha.com using a valid email address if you want any posting to be considered for deletion. Your request will be handled on a one to one basis. Sajha.com is a service please don't abuse it. - Thanks.
Sajha.com Privacy Policy

Like us in Facebook!

↑ Back to Top
free counters