Statistics S1 post your doubts here

[Princess Raven]

Nope ur answer to the last part of the permutation is wrong it's 57 not 43 but everything else is correct

the answers to the permutations questions were....for the first one 720 for the second one 60 for the last one 43. last question, last part u had to use the continuity rule or the binomial theorem, giving u an answer of 0.355 if my memory serves me correctly....... i got the variance wrong only due to me rounding up my mean. so would lose a mark! in general it was easy...and for the distribution for the coin the E(X) is 19/12. 100% sure about all the answers i have written

 

[Princess Raven]

the answers to the permutations questions were....for the first one 720 for the second one 60 for the last one 43. last question, last part u had to use the continuity rule or the binomial theorem, giving u an answer of 0.355 if my memory serves me correctly....... i got the variance wrong only due to me rounding up my mean. so would lose a mark! in general it was easy...and for the distribution for the coin the E(X) is 19/12. 100% sure about all the answers i have written

U had to do 7*7 since it could be 3 digits and could be repeated or 7 coz it could be 2 digits or just 5 so that's 1 so the answer is 49+7+1=57

 

[unkidd]

U had to do 7*7 since it could be 3 digits and could be repeated or 7 coz it could be 2 digits or just 5 so that's 1 so the answer is 49+7+1=57

your answer for the fist and the third one is correct but the second one s wrong

 

[Princess Raven]

What

your answer for the fist and the third one is correct but the second one s wrong

first and third?

 

[Hanona]

i really did and so did another person

Mee too!! But really even you got negative?? Atleast I ain't alone!

 

[ZaqZainab]

Well I gotta negative variance lol!! That's soo wrongg!!!

i was getting a negative and then i rechecked i took exact mean instead of 3 significant figures i got it as 0. something then

 

[ramiemajed96]

it is not 57 im sure about it they said it is a multiple of 5 and it is a 3 digit number so without repetition it is.... 6P2 without any repetition...then you have 115 335.... etc so 7 then u have 515 535 545 then skip 555 then 565 etc... so 7 here 30+7+6... 42 im sure!

 

[Princess Raven]

it is not 57 im sure about it they said it is a multiple of 5 and it is a 3 digit number so without repetition it is.... 6P2 without any repetition...then you have 115 335.... etc so 7 then u have 515 535 545 then skip 555 then 565 etc... so 7 here 30+7+6... 42 im sure!

Lol dude it said I multiple of 5 less than 1000 and can be repeated and I got it wrong as well my teacher told me the answer so I'm sorry u aren't correct that's why I said the permutation question was a bit tricky oh and a multiple of 5 means that the last digit is either 5 or 0 and er didn't have zero so it's just 5.

 

[Princess Raven]

i was getting a negative and then i rechecked i took exact mean instead of 3 significant figures i got it as 0. something then

Ya I got zero point something as well

 

[JackAaron]

Anyone of you have notes on Statistics 1 ? Mind to share pls bcause i hv a lot of problems on S1

 

[Princess1997]

if i get 58-69 on p1 and 38-40 in s1 will i be able to get an A?

Can someone answer me

 

[Kamihus]

Can someone answer me

Yeah, most probably even if you get the least mentioned.

 

[Princess1997]

Yeah, most probably even if you get the least mentioned.

THANK YOU.....

 

[hassaan10293]

i was getting a negative and then i rechecked i took exact mean instead of 3 significant figures i got it as 0. something then

So I messed up there then!

 

[ZaqZainab]

So I messed up there then!

you might just loos a mark

 

[ramiemajed96]

Lol dude it said I multiple of 5 less than 1000 and can be repeated and I got it wrong as well my teacher told me the answer so I'm sorry u aren't correct that's why I said the permutation question was a bit tricky oh and a multiple of 5 means that the last digit is either 5 or 0 and er didn't have zero so it's just 5.

xD shit i forgot what is below 100 :/

 

[soooso]

guys i think after Kamihus posted the answers i'll propably get around 35 or less but can anybody help me plzz in calculating my total marks again
question 1 and 2 and 4 are correct ,, and for question 3 i got 0.7 instead of 0.72 and for the second part it seems to be wrong :/
for question 5, i have the first part correct but second 2 parts i showed some values but the final answers are wrong :'(
for question 6 all are correct but the final answer for the mean is different as 10.07 ...
for question 7 the first 2 parts are correct and the third part i did everything ok except where there is continuity correction for the <173.5 it was 172.5 i guess
and in pure1 i may lose around 4 marks in the whole paper
so plzzzzzzz i need help cuz i cant sleep since the exam time :'(

 

[omaaaar]

guys i think after Kamihus posted the answers i'll propably get around 35 or less but can anybody help me plzz in calculating my total marks again
question 1 and 2 and 4 are correct ,, and for question 3 i got 0.7 instead of 0.72 and for the second part it seems to be wrong :/
for question 5, i have the first part correct but second 2 parts i showed some values but the final answers are wrong :'(
for question 6 all are correct but the final answer for the mean is different as 10.07 ...
for question 7 the first 2 parts are correct and the third part i did everything ok except where there is continuity correction for the <173.5 it was 172.5 i guess
and in pure1 i may lose around 4 marks in the whole paper
so plzzzzzzz i need help cuz i cant sleep since the exam time :'(

It would be better if you try to forget abt the maths papers and focus on the other papers which are left otherwise you are gonna mess them up too. Inshallah gt will be low and u and everyone will get an A . No need to panic now what you can do you did. Hope for the best now

 

[soooso]

It would be better if you try to forget abt the maths papers and focus on the other papers which are left otherwise you are gonna mess them up too. Inshallah gt will be low and u and everyone will get an A . No need to panic now what you can do you did. Hope for the best now

okay inshallah i will focus but i'm still worried about the exam and i have to get an A because it's my last year and i wont be able to retake the subject again anyway thanks and hopefully we all get the A

 

[omaaaar]

okay inshallah i will focus but i'm still worried about the exam and i have to get an A because it's my last year and i wont be able to retake the subject again anyway thanks and hopefully we all get the A

U know wat I would like to tell you abt my last year igcse maths paper 4 I had just messed it up and was worried all over the holidays really badly but in the end I got an A so I would like to say don't worry u and everyone else will inshallah get an A in all subjects