Section II (1 Viewer)

[LauraP12]

Yep 1/2000

wwwoooooo hahahaha love the carrot by the way hahah

 

[julia21]

yeah 27 C) i had them as equal chance? hmm.. what you guys do for 25 A)?

i dont think they're equal chance the fisrt chick has 2/100 and the second can 2/200 so the first has double the prob but yeah pretty stupid q for 4 marks???i had -2x-9 for 25ai couldn't do 28c and ran out of time and i skipped the simpsons rule q and was going to come back but didnt ... also couldnt do 28 b part ii but over all thought it was ok needed more time ..... and the gov question was pretty irrelevant haha i said something about birth rate and schooling or something

 

[mystiques4]

and the gov question was pretty irrelevant haha i said something about birth rate and schooling or something

I wrote that they would need to determine the age of children in the area if they were to consider opening a high school. I.E they need to check if there is a large amount of Year 4/5/6 students that will require a high school in the future, justifying the building of another school.

 

[Question?]

You edited that in after and it's not 1/5. It's 1/2000 like mystiques said.

Yeah i realised i forgot to put in what i finished i did put 2000/10000 but its wrong

 

[BlueCatBulletCD]

Yeah i realised i forgot to put in what i finished i did put 2000/10000 but its wrong

Fair enough. What did you get for 26 a) ii)?

 

[pooksta]

i think for the raffle ticket 27 c you could do a probaility tree , multiply along the lines and add to get her probability. i got marys prob. to be 2% chance and janes 1.99%

 

[m3mphis]

75 percent for 26 a) ii).

 

[chrisvec]

i got mary having a 2/100 = 1/50 chance of winningwhilst jane was a 2/100 = 1/100 chance therefore mary has a greater chance

 

[BlueCatBulletCD]

75 percent for 26 a) ii).

How did you get that?

 

[chrisvec]

with 26 a) ii) the IQR = 50% and there is 25% of scores under the lower quartile as as the 4 sections are broken up into quarters therefore 25% in each section

 

[BlueCatBulletCD]

with 26 a) ii) the IQR = 50% and there is 25% of scores under the lower quartile as as the 4 sections are broken up into quarters therefore 25% in each section

ffs I don't remember being taught that though it makes sense i guess. Lost marks now = 6. Probably more due to silly mistakes.

 

[m3mphis]

so 75 percent right or not? i just looked and saw the upper quartile rang is in line with 5 hours, therefore anything below it must be 75 percent.

 

[chrisvec]

Ye it would be 75%

 

[emma211]

so 75 percent right or not? i just looked and saw the upper quartile rang is in line with 5 hours, therefore anything below it must be 75 percent.

I'm pretty sure it was 75%

What did people write for 26 (a) (iii) ?

I wrote that it would be true if the same number of girls and boys were surveyed..dunno if thats right

 

[walesluke]

i said if same number of boys and girls aswell.

overall this was a hard paper and i think 90+ is going to be a really good score.

mean is gonna be low so 80's will be scaled up into 90's maybe.

cause 06,07, and 08 95+ was good cause they were so much easier.

dont stress too much everyone. unless of course you were stupid enough to leave out the back page.

 

[TaraBella]

I'm pretty sure it was 75%

What did people write for 26 (a) (iii) ?

I wrote that it would be true if the same number of girls and boys were surveyed..dunno if thats right

I said like it would be true if there were the same amount of outlyer girls int he 5-6 range as the small amount of boys in the 5-6 range. As it is more condensed for boys up in the 5-6 range, there would have to be a smaller amount of boys to have to accomidate to the amount of girls. Idk . lol I dont know if im right.

 

[emma211]

I said like it would be true if there were the same amount of outlyer girls int he 5-6 range as the small amount of boys in the 5-6 range. As it is more condensed for boys up in the 5-6 range, there would have to be a smaller amount of boys to have to accomidate to the amount of girls. Idk . lol I dont know if im right.

haha i just got so confused by that answer.

 

[hazza9]

What did everyone get for Simpson's Rule question?

 

[aaronzimmermann]

What did people write for 26 (a) (iii) ?

I wrote that it would be true if the same number of girls and boys were surveyed..dunno if thats right

I put it would be true if there was more girls than boys because the graph shows that boys spend longer on the internet than girls.

 

[Intermission]

Yeah, it's more girls than boys. It's gotta be, if there is to be the same number of girls outside their interquartile range as there are boys close to their median.