Your Banner Here

   [Show all top banners]

Racheeta
Replies to this thread:
geico 5684 days ago
Racheeta 5682 days ago
khoi_k_khoi_k 5682 days ago

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

Shyam Sundar Swonepa
poozaree
:: Subscribe
Back to: Kurakani General Refresh page to view new replies
 Probability Distribution ? HELP HELP
[VIEWED 6959 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 90 days
Recommended Popular Threads Controvertial Threads
Conservative discussions
TPS for Nepal likely to extend next week
सालीको चाक
TPS for Venezuela is terminated, only 60 days extension for transition period
Venezuela TPS lawuit
Homeland Security revokes temporary status for 532,000 Cubans, Haitians, Nicaraguans and Venezuelans
I hope all the fake Nepali refugee get deported
Court Hearing Approval.
Has anyone here successfully reinstated to F-1 status after a year-long gap following a drop from F-1?
Best Consultancy for H1 sponsorship in USA.
Trump admin revokes 18 months TPS extension for Venezuelans
Who is hottest nepali female?
NEPAL TPS
What is the purpose of an F1 student visa in the U.S.?
#MAGA#FAFO is delicious
महँगो अण्डाको पिकल्प : कुखुरा र खोर भाडामा लिने
Homeowner Charged renting to illegal migrants
Measles vax deaths vs measles death in USA
Why some Nepali people pull each other's legs???
Alert: Deported over Traffic Ticket
Who is hottest nepali female?
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