Your Banner Here

   [Show all top banners]

Racheeta
Replies to this thread:
geico 6047 days ago
Racheeta 6045 days ago
khoi_k_khoi_k 6045 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 10804 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
ए १ पनि पुगेनछ ?
Democrat wants to run election like in India. Chaos and Confusing to voters.
नोबेल शान्ति पुरस्कार र अशान्त राष्ट्रपतिको बालहठ
नेपाली वालमार्ट चोर
200 denaturalization cases per month to the Department of Justice for the 2026 fiscal year.
मिरो प्रेडिक्शन जन्मेर एमेरिकामा आखा खो ल न पायेका नागरिकता बारे
मानसिक सन्तुलन, एक कहालीलाग्दो घटना सिक्नुपर्ने कुराहरु
Breaking News: Ninth Circuit Rejects Government Bid to Undo Nepal TPS Order, Leaves Protections in Place
Funny when Nepalis talk about Epstein and injustice
नेपाली ससुरोले वर्जीनियामाँ आफ़नो छोरी नाती र ज्वाईलाई खुकुरी प्रहार
Sukulgunda 2.0 / www.sukulgunda.com
Why Prachanda seems to be the smartest of them all?
When will Nepali women be equal?
बालेंन मेयर बाट प्रधान मन्त्रि हुने भो ?
When will the culture of impunity end?
बालेंन आए पछि आशाका किरण देखिन थालेका छन् !!
Can we really get rid of Nepotism in the government?
आरको नेपालीले बेजत गर्यो फेरी अरविंग टेक्सासमा बुढ़ाहरू लाई स्कॉम गरेर
How many ministries do we really need?
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