How was S1 Statistics 62?

[slisjunknown]

It was okay.....not good, not bad....

 

[Aly Emran]

Nearly 24 hours have passed so i'll just post the answers here for all to see:
1.0.222
2. Mean 45.8 sd 14.9
3.that was all diagram and stuff.
4. X=0.81 next 12/31
5. 0.6 was of even even odd and distribution was 1 0.6 2 0.3 4 0.1
6 20,60 and 1210
7.expected days 7 t=37 min and last mean 8.94 sd 2.42

I guess expected days were 49days... There were 52*7=364 days in a year and probability was multiplied with 364 days... I got 49days(7weeks)
rest of all ans of mine are matching urs

 

[asadalam]

I guess expected days were 49days... There were 52*7=374 days in a year and probaility was multiplied with 364 days... I got 49days(7weeks)
rest of all ans of mine are matching urs

A friend of mine did the same mistake and even i did 49 initially.You should've read the question carefully.It stated he ran once a week,hence in a year he ran only 52 days.He didnt run everyday.

 

[Madi Khan]

asadalam .. can u kindly tell me what qs 6 was ? i've forgot it .. and is is it possible for u to recall all questions.. nt word to word but just the statemnent without numerical values ? like what the question was about ?

 

[Aly Emran]

A friend of mine did the same mistake and even i did 49 initially.You should've read the question carefully.It stated he ran once a week,hence in a year he ran only 52 days.He didnt run everyday.

Shit .____.
How much will i lose 4 marks ka tha woh qstn

 

[asadalam]

Shit .____.
How much will i lose 4 marks ka tha woh qstn

Probably 2 marks,one for that mistake and one for the answer.

 

[asadalam]

asadalam .. can u kindly tell me what qs 6 was ? i've forgot it .. and is is it possible for u to recall all questions.. nt word to word but just the statemnent without numerical values ? like what the question was about ?

I'll try to

1. It was probability of sixes obtained would be 3-5 inclusive out of 10 trials of a fair die.

2.The whole table where it asked for mean and sd.Obv i dont remember it

3.It asked about box and whisker plot,we had to find quartiles ,median and find.next part asked to prove there werent any outliers

4.It was that probability tree.First asked for us to find x given that probability gift will be liked will be 0.783 and the next asked for conditional probability that she didnt like when given a scarf.

5.That discs one where we had to choose from 5 disks.First it asked for probability that chosen ones were 2 even one odd and then it asked for probability distribution for s where s was smallest number in selection like 1 in 124 and 4 in 467.

6.It was banana one.First was B first letter and N last.Next was arrangement for all As together and last was Selections available when 2 specific people couldnt be in a committee together.

7.That runner one.First it asked how many days were expected for him to run for less than 30 min,then it asked for value of t where p of time being between 35.2(mean) and t was 0.148.Last it gave 2 probabilities for a different distribution and asked us to find mean and sd.We had to find using simultaneous equations.

 

[slisjunknown]

Nearly 24 hours have passed so i'll just post the answers here for all to see:
1.0.222
2. Mean 45.8 sd 14.9
3.that was all diagram and stuff.
4. X=0.81 next 12/31
5. 0.6 was of even even odd and distribution was 1 0.6 2 0.3 4 0.1
6 20,60 and 1210
7.expected days 7 t=37 min and last mean 8.94 sd 2.42

For question 3,did you take the total as 100 when using box and whisker plot??
Because some of my friends took 88

 

[asadalam]

For question 3,did you take the total as 100 when using box and whisker plot??
Because some of my friends took 88

We had to take the range as 1.6 - 10 s on the plot as we had to showcase time not the number of computers.

 

[slisjunknown]

We had to take the range as 1.6 - 10 s on the plot as we had to showcase time not the number of computers.

what was ur median , upper and lower quartile?

 

[asadalam]

what was ur median , upper and lower quartile?

I think it was 2.6 3.8 and 6.4 or something along these lines.You?

 

[slisjunknown]

I think it was 2.6 3.8 and 6.4 or something along these lines.You?

I think I got something similar....I guess I got 2.7 for lower quartile...thanks..

 

[Heyyy]

I think it was 2.6 3.8 and 6.4 or something along these lines.You?

Yeah 2.6,3.8 and 6.4!

 

[Madi Khan]

Asad bro .. Cud u pleaae right down the solution for permutation combination and first question's binomial expression .. ?

 

[Aly Emran]

Probably 2 marks,one for that mistake and one for the answer.

But my probability was correct 100% only what I did wrong was just multiplying ans with days not with weeks
I guess finding probability was of two marks and expected days was of 1 mark... Thats how they distributed marks in prev past ppr qstns

 

[asadalam]

But my probability was correct 100% only what I did wrong was just multiplying ans with days not with weeks
I guess finding probability was of two marks and expected days was of 1 mark... Thats how they distributed marks in prev past ppr qstns

Hmm then i think youll lose only one mark

 

[ahmedish]

Nearly 24 hours have passed so i'll just post the answers here for all to see:
1.0.222
2. Mean 45.8 sd 14.9
3.that was all diagram and stuff.
4. X=0.81 next 12/31
5. 0.6 was of even even odd and distribution was 1 0.6 2 0.3 4 0.1
6 20,60 and 1210
7.expected days 7 t=37 min and last mean 8.94 sd 2.42

question 7 is 6 days you're supposed to round down no matter how big. This is like the o level question were you were asked how many cups can you fill, if its 6.99 its still 6 cups as the 7th wont be filled.

 

[psychiatrist]

explain Q6.

 

[asadalam]

question 7 is 6 days you're supposed to round down no matter how big. This is like the o level question were you were asked how many cups can you fill, if its 6.99 its still 6 cups as the 7th wont be filled.

I'm done explaining any questions.i have other papers as well.if you really believe in that,wait till the mark schemes come out and we'll find out.

 

[hamzashariq]

question 7 is 6 days you're supposed to round down no matter how big. This is like the o level question were you were asked how many cups can you fill, if its 6.99 its still 6 cups as the 7th wont be filled.

You're overthinking it bro. 7 is the correct answer.