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A
ArgumentPrinyal 04.03.22 12:34 am

Let's Think (Diablo 2)

Imagine that Akara gives you the choice of one of three unidentified griffins. It is known that one of them is a perf, and the rest have random, non-perf stats. You pick one, let's say #1, without identifying it. After that, Akara (who knows where the perf is, and where the random ones are), identifies one of the remaining griffins, for example #3 - it turns out not to be a perf. Akara then asks you if you'd like to change your choice and choose Griffin #2.

Question: Will your chance of getting a perf griffon increase if you accept the host's offer and change your choice?
20 Comments
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k
kewelldkny 04.03.22

Increase, gotta change your choice

S
Sanchez Ramirez 04.03.22

Item stats are determined at the time of identification, no? All three can be perf. In any case, I would not even take a perf Griffon.

Q
QLinkee 04.03.22

will increase.

o
obsessed 04.03.22

ArgumentPrinyal, people, ATP, you revive the forum. you're not from the administration of pg, no? ;-)
PS next topic should be called "Let's use our brains"! ;D

P
Patza Vats 04.03.22

Will increase twice.

B
Biscop_moo 04.03.22

Monty Hall paradox, then Google will tell you.

S
Sanchez Ramirez 04.03.22

And if you sell Akara an unidentified ring, and it turns out to be a burn?

A
ArgumentPrinyal 04.03.22

Sanchez Ramirez
I'm not sure about Akara, but if you sell it to you, it turns out to be a 10 fcr magic ring.

R
Rivnyanyn 04.03.22

Decrease. If Akara wanted to fit a perf griffin to US, she would have given it like that, and would not have arranged a lottery. And since she knows that the No. 1 we have chosen is a perf, she starts to play up.
And in general, if it comes to that, such affairs in the Rogue Camp are in charge of the Guide.

P
Patza Vats 04.03.22

pvpmasta, if you consider tasks as related to each other, then by changing your decision, you increase your chances from 1/3 to 2/3.

P
Patza Vats 04.03.22

pvpmasta, indeed, a slippery wording:
After that, Akara (who knows where the perf is and where the random ones are), identifies one of the remaining griffins, identifies one of the remaining griffins, for example # 3, - it turns out not to be a perf

The part in brackets pushes conclusion that Akara purposefully identifies non-perf. The author needs to clarify this point.

P
Patza Vats 04.03.22

pvpmasta, then what is the information in brackets for? If you're right about that, then these are two unrelated problems with odds of 1/3 and 1/2, respectively.

C
CorvinOk 04.03.22

9 know Praviliniy OTVET !!!
Akara = Galkin!!! Toka y nee 33.3 / 66.7 ,a ne 50/50 :D
ILi kto tam ety hreny was vedet ? 9hz)

b
bd_sm[TDPG] 04.03.22

Corvinok
90 60 90

o
obsessed 04.03.22

shine.
:-)

J
JonnyMSB 04.03.22

Zalachi analogue:

There are 5 balls in the basket. Three blue and two red. Chance to draw blue 3/5, red 2/5.
The person draws a random ball from the basket. Blue.
There are 4 balls left in the basket. Now the chance to draw blue red is 2/2 and 2/2.
Accordingly, the previous choice had an impact on the next one.
So if the akara has 3 shields, then the chance to pull out a perf shield will be 1/3.
The chance to pull out a bad one is 2/3.
Next, there are two options.
Let's take out perf. We hit 1/3. Akara removes one of the bad shields. The chance that Akara now has a shitshield is 1/1. Those. We are 100% in the flight if we want to exchange the shield.
If we pull out a bad shield, then again there are two options:
1) Akara removes the bad one and a perf remains. Chance to pull perf = 1/1.
2) Akara removes the good one, and then there is no point in choosing at all.

Considering the previous points, we conclude:
The chance to pull out a good shield in any case = 2/3 only in one case out of three does Akara throw him out.

PS reflections under beer :D

T
Torum. 04.03.22

The author is out of his mind.

a
annortheone 04.03.22

Torum.
Imagine that Akara gives you a choice of one of three unidentified griffins (he is shocked).

Z
Zigzag-V 04.03.22

Works only on goats and balls)

B
Bergtatt 04.03.22

IMHO, if anyone has a familiar thimble, then he (the thimble) will explain the solution much better than the proposed options,)
... I twist, twist, I want to deceive)))