Statistics S1 post your doubts here

[Usman04]

Plz tell in detail about independent events. How can we check whether the events are independent?? In the give paper q1 is about independent event plz solve it!!
http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s13_qp_63.pdf

 

[AnujaK]

https://sites.google.com/site/fromatoscom/photo-gallery
Practice for statistics over here with solved papers!

 

[_Ahmad]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w11_qp_63.pdf

Can anyone PLEASE explain Q2 i)

 

[TheMmk17]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s13_qp_62.pdf

Question 3 part ii

 

[xAllie]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_qp_62.pdf
Question 3 part ii

 

[Crimson-Saint]

can anyone post the rules for Continuity Correction,....the one where u add 0.5 and minus 0.5 if u can post all of them it would be great

 

[ZaqZainab]

can anyone post the rules for Continuity Correction,....the one where u add 0.5 and minus 0.5 if u can post all of them it would be great

 

[TheMmk17]

Thank you Allie

 

[Crimson-Saint]

YOU......Thank You....

 

[Kamihus]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w13_qp_61.pdf
Q4 (i) What are the quartiles in this question?

 

[safa adil]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_qp_63.pdf
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_ms_63.pdf
Q2 please explain
and Q3 (ii) why divided by 3 & and how we got -0.53 ?

 

[Kamihus]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_qp_63.pdf
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_ms_63.pdf
Q2 please explain

There are 5 houses with number greater than 14. At least 2 means 2 or 3 of these houses are chosen for the newspapers.
Probability will be 5/12 for first one, 4/11 for second one as one less in total will be there, and so on.
If 2 are delivered then two will be from these 5 and 1 will be from the remaining 7. This can be done in 3 ways as the third house can be any of these three.
Multiply 3 by 5/12,4/11 and 7/10.
Another way is if all three are from these 5 houses. In this case, 5/12 for first one, 4/11 for second, 3/10 for the third, multiply them.
Then add both values to get the total probability.

Can you help me with mine?

 

[SoulEater]

Can any of you niqqas help me out a lill.
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w13_qp_62.pdf
7 (iii) How do you find the value of R intersection S ?
Thnx bby.

 

[Yuvendren]

Can any of you niqqas help me out a lill.
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w13_qp_62.pdf
7 (iii) How do you find the value of R intersection S ?
Thnx bby.

R INTERSECTION S = P(R AND S)

 

[ZaqZainab]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s12_qp_63.pdf
Q4 ii how to find the probability of X=4
i am getting (1/3)

 

[SoulEater]

R INTERSECTION S = P(R AND S)

Can you explain it like type it out that would be pretty helpful , because sadly I can't make out anything from your post.

 

[ZaqZainab]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w13_qp_61.pdf
Q4 (i) What are the quartiles in this question?

LQ=520 The 13th value
UQ=760 the 39th value

 

[Yuvendren]

Can you explain it like type it out that would be pretty helpful , because sadly I can't make out anything from your post.

P(R) could be either (4,4,3) or (4,3,4) or (3,4,4)
P(S) is no. of first card is 3 -----> which is (3,4,4)
so, P(R and S) = 4/10 * 6/9 * 5/8 = 1/6

 

[IGCSE13]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w11_qp_63.pdf. Q2 I anyone ?

 

[Haya Ahmed]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w09_qp_62.pdf

Q1 (ii) can you explain it please with details ?!