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September 21, 2020, 12:25:44 pm

Author Topic: VCE Methods Question Thread!  (Read 2975843 times)  Share 

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Arun1693

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Re: VCE Methods Question Thread!
« Reply #18585 on: June 13, 2020, 08:39:01 pm »
0
I know this has nothing to do with questions on methods, but here it goes:
 I have an idea for my bound reference, that is if I could attach two books and bind together with a lot of sticky tapes. I am not sure if it complies with the VCAA guidelines. Does the SACS follow the same guidelines as the exams?
For context here is the guideline from VCAA on bounded references: https://www.vcaa.vic.edu.au/assessment/vce-assessment/materials/Pages/index.aspx#01
Technically it is still one bound reference with a single spine.
Can you please shine some light on this? Would be appreciated.
I have attached a picture of what I am thinking of.
Thank you in advance.

Implicxty

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Re: VCE Methods Question Thread!
« Reply #18586 on: June 13, 2020, 10:18:22 pm »
0
I know this has nothing to do with questions on methods, but here it goes:
 I have an idea for my bound reference, that is if I could attach two books and bind together with a lot of sticky tapes. I am not sure if it complies with the VCAA guidelines. Does the SACS follow the same guidelines as the exams?
For context here is the guideline from VCAA on bounded references: https://www.vcaa.vic.edu.au/assessment/vce-assessment/materials/Pages/index.aspx#01
Technically it is still one bound reference with a single spine.
Can you please shine some light on this? Would be appreciated.
I have attached a picture of what I am thinking of.
Thank you in advance.
Im pretty sure this is allowed, I remember seeing quite a few of those last year

The Cat In The Hat

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Re: VCE Methods Question Thread!
« Reply #18587 on: June 15, 2020, 10:33:34 am »
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Technically it is still one bound reference with a single spine.
True, but you have to make sure it's within A4 still. If 'tis, go for it. I'll probably do the same if I run out of time to make a bound book - just bind the books for my two SACS together.
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FrankieDens

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Re: VCE Methods Question Thread!
« Reply #18588 on: June 17, 2020, 12:09:42 am »
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Hi everyone,

I'm not exactly tech-savvy with my CAS so I'm so sorry if this is a noob question lol  :P

I was just wondering if there's a way for my CAS to tell me what transformations have been applied to a graph to create another graph.
e.g. What transformations have been placed on f(x)=1/(2x-4) + 3 to transform it into g(x)=1/x

I understand that you can just decipher what transformations have happened just by looking at the equations but just curious to see if it's possible for the CAS to tell you exactly what dilations, reflections or transformations have been applied.

Thank you!  :D
2019: Biology [40]
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Re: VCE Methods Question Thread!
« Reply #18589 on: June 17, 2020, 01:33:35 am »
0
Hi everyone,

I'm not exactly tech-savvy with my CAS so I'm so sorry if this is a noob question lol  :P

I was just wondering if there's a way for my CAS to tell me what transformations have been applied to a graph to create another graph.
e.g. What transformations have been placed on f(x)=1/(2x-4) + 3 to transform it into g(x)=1/x

I understand that you can just decipher what transformations have happened just by looking at the equations but just curious to see if it's possible for the CAS to tell you exactly what dilations, reflections or transformations have been applied.

Thank you!  :D

AFAIK no. At least not with the TI-Nspire.

If the CAS was THAT powerful there’d really be no point in VCAA testing students hahah.

VCE: Literature [50] Methods [50] Further [48] Music [48] Chemistry [40] Biology [33]
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ABB0005

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Re: VCE Methods Question Thread!
« Reply #18590 on: June 18, 2020, 04:15:34 pm »
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Is getting a shit score on my 1/2 exam gonna affect me next year for 3/4 methods?

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Re: VCE Methods Question Thread!
« Reply #18591 on: June 18, 2020, 04:42:08 pm »
+2
Is getting a shit score on my 1/2 exam gonna affect me next year for 3/4 methods?

1/2 results don't contribute to 3/4 score calculations*

make sure you learn from your mistakes for next year and try to fill any gaps in your foundation before 3/4



*there was some talk with covid about using 1/2 results but normally they don't influence study scores at all

Azila2004

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Re: VCE Methods Question Thread!
« Reply #18592 on: June 20, 2020, 11:03:05 pm »
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Hello,

I have a question on permutations: If no number can be used more than once, how many numbers larger than 700 can be formed from the digits 3, 4, 5, 6, 7, 8?

It's says that the answer is 1560, but I don't really see how. I keep getting 1840 but don't really see what the error is. Help would be appreciated!  :D
Just someone who likes to learn a lot of questions.

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jammol7

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Re: VCE Methods Question Thread!
« Reply #18593 on: June 21, 2020, 08:47:47 pm »
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Hello,

I have a question on permutations: If no number can be used more than once, how many numbers larger than 700 can be formed from the digits 3, 4, 5, 6, 7, 8?

It's says that the answer is 1560, but I don't really see how. I keep getting 1840 but don't really see what the error is. Help would be appreciated!  :D

Are you sure the answer is correct? Or maybe there's more to the question? I'm getting 1840 too.
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2020: Chemistry [ ] Mathematical Methods [ ] Drama [ ]

Azila2004

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Re: VCE Methods Question Thread!
« Reply #18594 on: June 22, 2020, 06:43:15 pm »
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Are you sure the answer is correct? Or maybe there's more to the question? I'm getting 1840 too.

I'm not exactly sure, but it says that the answer is 1560. It's alright though!

Buuuut I do have another question :D
Bill is making a sandwich. He may choose any combination of the following: lettuce, tomato, carrot, cheese, cucumber, beetroot, onion and ham. Find the probability that: a) the sandwich contains ham    b) the sandwich contains 3 ingredients  c) the sandwich contains at least 3 ingredients



Help would be really appreciated!
Just someone who likes to learn a lot of questions.

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jammol7

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Re: VCE Methods Question Thread!
« Reply #18595 on: June 22, 2020, 07:42:42 pm »
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I'm not exactly sure, but it says that the answer is 1560. It's alright though!

What no but I'm honestly confused. If I did make a mistake I need to know. Can someone please explain??

I did 2x5x4 + 6x5x4x3 + 6x5x4x3x2 + 6x5x4x3x2x1 = 1840. If the anwer is indeed 1560, then where did I go wrong?

Also can I have some help with the following questions:

In a game a coin is tossed 5 times. If all 5 are heads, you get $36. Otherwise, you lose the money you bid. What's the highest bid you would make? What's your expected profit?
What I have so far
Probability of winning is 1/32. So expected payoff is 1/32 x 36 which is 1.125. So would the highest bid just be $<1.125?? Like I bid $1.12 and my expected profit is half a cent?? It doesnt sound right to me

What if the same game is played 10,000 times? What's your highest bid?
What I have so far
Ok I don't understand this question at all. All the games are independent so why should my bid be different?

What kind of distribution is this?
What I have so far
Idk whether the answer should be binomial or normal distribution. Binomial bc there's only either heads or tails. But normal bc it's being played 10,000 times so would it be normal?

pls help!! Thank you!
VCE 2019-21
2019: Biology [49] Physical Education [43]
2020: Chemistry [ ] Mathematical Methods [ ] Drama [ ]

Azila2004

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Re: VCE Methods Question Thread!
« Reply #18596 on: June 22, 2020, 08:57:16 pm »
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What no but I'm honestly confused. If I did make a mistake I need to know. Can someone please explain??

I did 2x5x4 + 6x5x4x3 + 6x5x4x3x2 + 6x5x4x3x2x1 = 1840. If the anwer is indeed 1560, then where did I go wrong?

Also can I have some help with the following questions:

In a game a coin is tossed 5 times. If all 5 are heads, you get $36. Otherwise, you lose the money you bid. What's the highest bid you would make? What's your expected profit?
What I have so far
Probability of winning is 1/32. So expected payoff is 1/32 x 36 which is 1.125. So would the highest bid just be $<1.125?? Like I bid $1.12 and my expected profit is half a cent?? It doesnt sound right to me

What if the same game is played 10,000 times? What's your highest bid?
What I have so far
Ok I don't understand this question at all. All the games are independent so why should my bid be different?

What kind of distribution is this?
What I have so far
Idk whether the answer should be binomial or normal distribution. Binomial bc there's only either heads or tails. But normal bc it's being played 10,000 times so would it be normal?

pls help!! Thank you!

Ohhhhh, I just checked the book and found the mistake. I wrote the question wrong, it was actually 7000 instead of 700 :O
I spend a lot of my time writing the questions without thinking, so it was probable that I accidentally wrote something slightly incorrect. I'm so sorry, it was a silly mistake. Seriously, thank you though!
Just someone who likes to learn a lot of questions.

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thatdumbstudent

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Re: VCE Methods Question Thread!
« Reply #18597 on: June 22, 2020, 10:44:58 pm »
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hi everyone, i've recently received a question like this in class today with those information (sorry for the bad drawing but i don't have the worksheet with me)
i was just wondering how should i start tackling this?
i started using turning point form then i also used the derivative = 0 when x = 10 but then got stuck afterwards
- ps. a scale was also given and i measured it and it was like 1.2cm=5m (if that helps)
- other than this i don't think there's enough information? is there? or is it that i'll have to actually measure the graph with a ruler?

jammol7

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Re: VCE Methods Question Thread!
« Reply #18598 on: June 23, 2020, 09:41:20 am »
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Ohhhhh, I just checked the book and found the mistake. I wrote the question wrong, it was actually 7000 instead of 700 :O
I spend a lot of my time writing the questions without thinking, so it was probable that I accidentally wrote something slightly incorrect. I'm so sorry, it was a silly mistake. Seriously, thank you though!
Ahhh that makes sense. My mind can rest now ;D

---

Can I please have some help with these questions?
In a game a coin is tossed 5 times. If all 5 are heads, you get $36. Otherwise, you lose the money you bid. What's the highest bid you would make? What's your expected profit?
What I have so far
Probability of winning is 1/32. So expected payoff is 1/32 x 36 which is 1.125. So would the highest bid just be $<1.125?? Like I bid $1.12 and my expected profit is half a cent?? It doesnt sound right to me

What if the same game is played 10,000 times? What's your highest bid?
What I have so far
Ok I don't understand this question at all. All the games are independent so why should my bid be different?

What kind of distribution is this?
What I have so far
Idk whether the answer should be binomial or normal distribution. Binomial bc there's only either heads or tails. But normal bc it's being played 10,000 times so would it be normal?

So sorry for constantly asking but I'm honestly stumped! Especially question 2!
VCE 2019-21
2019: Biology [49] Physical Education [43]
2020: Chemistry [ ] Mathematical Methods [ ] Drama [ ]

colline

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Re: VCE Methods Question Thread!
« Reply #18599 on: June 23, 2020, 12:22:40 pm »
+3
hi everyone, i've recently received a question like this in class today with those information (sorry for the bad drawing but i don't have the worksheet with me)
i was just wondering how should i start tackling this?
i started using turning point form then i also used the derivative = 0 when x = 10 but then got stuck afterwards
- ps. a scale was also given and i measured it and it was like 1.2cm=5m (if that helps)
- other than this i don't think there's enough information? is there? or is it that i'll have to actually measure the graph with a ruler?

I'm not aware of rulers ever being required for measurement purposes on VCAA/NHT exams, so I doubt it. Unless they specified the diagram was to scale (which they never are in the final exams)

Also I'm not sure if I missed it, but what is the actual question? What are you trying to find?

In a game a coin is tossed 5 times. If all 5 are heads, you get $36. Otherwise, you lose the money you bid. What's the highest bid you would make? What's your expected profit?
What I have so far
Probability of winning is 1/32. So expected payoff is 1/32 x 36 which is 1.125. So would the highest bid just be $<1.125?? Like I bid $1.12 and my expected profit is half a cent?? It doesnt sound right to me

What if the same game is played 10,000 times? What's your highest bid?
What I have so far
Ok I don't understand this question at all. All the games are independent so why should my bid be different?

What kind of distribution is this?
What I have so far
Idk whether the answer should be binomial or normal distribution. Binomial bc there's only either heads or tails. But normal bc it's being played 10,000 times so would it be normal?
1. Yeah it's correct
2. The expected payoff for ONE game is $1.125, so what would it be if you play the same game 10,000 times?
3. I think answering binomial would be sufficient. Central limit theorem is not on the study design.

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