THE RISKS OF LIFE Video Conference #3 Scams & Cons.
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Transcript of THE RISKS OF LIFE Video Conference #3 Scams & Cons.
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THE RISKS OF LIFEVideo
Conference #3Scams & Cons
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Psychic PowersPsychic Powers
How does this card trick work?
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The shuffle
Cards are ordered 1234512345
Cutting the cards does not change the cyclic order.
For example, a cut between 2 and 3 will move the card order to 3451234512, but
the original 1234512345 is still there.
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The 5 Card Piles the secret move
Assume cards are in their original order……..
Counting 5 cards gives 12345 in one pile and 54321 in another.
This is a PALINDROMIC STACK (values in one pile are exactly reversed in the other)
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The SwapsThe number of swaps is always one less
than the number of cards in the pile.
Consider only 3 card values.
You could do 2 swaps in the first pile OR 2 swaps in the second pile
OR 1 swap in the first pile and 1 swap in the second pile
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2 swaps in the first pile
1 3
2 2
3 1
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2 swaps in the first pile
3
2 2
3 1
1
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2 swaps in the first pile
3
2
3 1
1
2
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2 swaps in the first pile
3
2
3 1
1
2
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2 swaps in the second pile
1 3
2 2
3 1
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2 swaps in the second pile
1
2 2
3 1
3
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2 swaps in the second pile
123 1
32
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2 swaps in the second pile
123 1
32
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1 swap in the first pile1 swap in the second pile
1 3
2 2
3 1
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1 swap in the first pile1 swap in the second pile
3
2 2
3 1
1
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1 swap in the first pile1 swap in the second pile
2 2
3 1
1 3
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1 swap in the first pile1 swap in the second pile
2 2
3 1
1 3
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Maths behind the Scam
This will work any number of cards N that are placed in order in palindromic stacks.
When we make N-1 swaps, as one card is moved down its equivalent rises in the
other stack so that the ones meeting on top of the piles match.
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Monty Hall ProblemMonty Hall Problem
Probability puzzle based on an American Gameshow
‘Lets Make a Deal’
Named after the host
‘Monty Hall’
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Numbers Monty Hall 2009
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Monty Hall ActivityMonty Hall ActivityIn pairs, use your cups and prize to simulate the Monty Hall problem. Try
swapping and not swapping as many times as possible. Decide on one of the following conclusions:
To increase your chances of winning you should:
Swap?
Not Swap?
Does it matter?
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Monty Hall ActivityMonty Hall ActivitySwap Not Swap
Win
Lose
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Results (% of wins)Results (% of wins)Wydean St
JosephsKarachi
Swap
Don’t Swap
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BBC Horizon, Broadcasted 1st April 2009Alan and Marcus Go Forth and Multiply
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
DON’T SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car
Scenario 3 Car
DON’T SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car WIN
Scenario 3 Car
DON’T SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car WIN
Scenario 3 Car LOSE
DON’T SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car WIN
Scenario 3 Car LOSE
DON’T SWAP
CUP 1 CUP 2 CUP 3
Scenario 1 Car
Scenario 2 Car
Scenario 3 Car
SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car WIN
Scenario 3 Car LOSE
DON’T SWAP
CUP 1 CUP 2 CUP 3
Scenario 1 Car WIN
Scenario 2 Car
Scenario 3 Car
SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car WIN
Scenario 3 Car LOSE
DON’T SWAP
CUP 1 CUP 2 CUP 3
Scenario 1 Car WIN
Scenario 2 Car LOSE
Scenario 3 Car
SWAP
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Swap or Not?Swap or Not?
CUP 1 CUP 2 CUP 3
Scenario 1 Car LOSE
Scenario 2 Car WIN
Scenario 3 Car LOSE
DON’T SWAP
CUP 1 CUP 2 CUP 3
Scenario 1 Car WIN
Scenario 2 Car LOSE
Scenario 3 Car WIN
SWAP
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THE SYSTEM
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Channel 4 Broadcast. 1st February 2008. Derren Brown, The System.
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81 people 81 people
279
3
93
3 3
13
8127
3
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7776 people 7776 people
1296216
6
21636
6
366
6
77761296
6
61
6
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Channel 4 Broadcast. 1st February 2008. Derren Brown, The System.
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Pyramid SellingPyramid SellingCompulsory InvestigationCompulsory Investigation
Lindi’s Women’s Networking Scheme
You invest £3,000 with the promise of £24,000 in return!
How does this scheme work?
What is the problem with this scheme?
Why is it illegal?
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Video Conference #4
Be Prepared!(Thursday March 25th) Follow-up work Presentations
Mathionaire (part 2: £1,000 - £32,000) Remember to look at the compulsory investigation question on the website as one question will be based on it.