Statistics 1: Post Your Doubts Here

[Light Yagami]

Please give me the detailed solution of :-

 

[Amy Bloom]

question 2 from -----> http://olevel.sourceforge.net/papers/9709/9709_s12_qp_62.pdf (Go to http://www.xtremepapers.com/community/threads/statistics-1-post-your-doubts-here.13281/page-3 - this question was answered by ladmireblue)
cnt open this, can u please help?

I could obtain the answer which ladmireblue answered. i print-screened below. I'm sorry for image quality.

 

[panoramafolks]

Please give me the detailed solution of :-
View attachment 22106

plz tell me if its correct......& sorry if its not neat..!

 

[panoramafolks]

Q8, Paper 6683/01 Edexcel GCE Statistics S1, A/AS Friday 20 May 2011 Afternoo. I am unable to understand Part G of this question. Why compliment of 5 not 1 etc.?

outcome of even ... odd...odd which can be done in (3!/2!)=3 ways ....
0.45 x 0.2 x 0.2 x 3= 0.054
tell me if i m correct

 

[syed1995]

outcome of even ... odd...odd which can be done in (3!/2!)=3 ways ....
0.45 x 0.2 x 0.2 x 3= 0.054
tell me if i m correct

Which question is that?

 

[sufyanalizaib]

salam ..urgently need a little explanation in qustion 6 part 2

 

[railey]

Salaam Alaykum, Please help:
Esme noted the test mark, x, of 16 people in a class, she found that Σ x= 824 and that the standard deviation of x was 6.5
i) Calculate Σ (x-50) and Σ (x-50)²
ii) One person did the test earlier and her mark was 72. Calculate her new mean and standard deviation of the marks of all 17 people.


Thanks in advance Ali Railey