e-Teaching
Online Teaching : The e-Teaching Community
Created on: 02 July, 2009 Members: 35775 | Community Link: http://e-teaching.wiziq.com

statistics -2 a level

by murali velayudhan menon
Posted on 18 March, 2013

i wish to have a discussion on sampling problems anybody intrested,smebdy with good backgroug in stat will be appreciated

by murali velayudhan menon posted on 09 April, 2013
n unbiased dice is thrown once. Write down the probability distribution of the score X and show that Var(X) = 35/12 = I've done this!!!

The same dice is thrown 70 times.
a) Find the probability that the mean score is less than 3.3.

b) Find the probability that the total score exceeds 260.
is this somewhat related to the first part explain!!!
the answers:-
a part)0.155
b part)0.845

I got the first one but second part T IS THE SUM p(T>260.5) AFTER CC N(245,(14.289)^2), p(Z>1.084)=1-.8586=1.015 BT ANS IS .845 PLS DO SHARE UR IDEAS
by Irshad Hadi posted on 19 April, 2013
Dear Mr. Murali Velayudhan Menon,

I did the solution but I was having difficulty in typing the mathematical expressions here in this box. Can you please contact me on skype for discussion., If it is not too late. My ID is "irshad_hadi". 

Regards.
HADI
by Irshad Hadi posted on 20 March, 2013
Although I don't claim to be an expert, if I can be of some help, it will be my pleasure. 
by Tunde Usman Nurudeen SULE posted on 21 March, 2013
tell us what you want to sample, and you will get the link. if you preparing a questionnaire, we will tell the style of questionnaire to prepare!
by Papis Raymond posted on 14 June, 2013
learnign 

by Papis Raymond posted on 14 June, 2013
english

by My Demo posted on 26 July, 2013
by My Demo posted on 26 July, 2013
Would you like to Reply:
Sign Up, or  Sign In (if you are existing member) to join this community!

See Virtual Classroom in action

Get a hands-on look at how WizIQ Virtual Classroom works.

Try Virtual Classroom Now

Request a free demo

Recent Discussions