This is my answer:
|------------------30%------------------|--10%---|---------------60%------------------------| 100%
Cor AND NOT Dam Cor AND Dam NOT Cor
|--------------------Two-----------------| NOT Two|----Never know if it's Two or NOT Two-----| 100%
Cor: correctly addressed
Dam: damaged
Two: arrive within two days
We know that:
1. If Cor, then P(Dam) < 50%;
2. If Cor AND NOT Dam, then Two;
3. P(Two) < 50%;
---
P(Cor) < 50%;
Therefore, P(Cor AND NOT Dam) < P(Cor) < 50%;
Because P(Two) >= P(Cor AND NOT Dam);
Therefore, P(Two) < 50% is a necessary condition;
Therefore, MBT
I feel your struggle. Hope your law school app succeed!
https://discord.gg/2syvkJqjgg
Bumping this again
Kinda curious why is your law school experience only "ok"? :)
Use this link! https://discord.gg/2syvkJqjgg
Bumping this
Bumping this
Hey guys,
I'm organizing an LSAT discord study group specifically for people stuck in the range 166-170 and want to get to about 173-176. The key issue this discord group addresses is the lack of community for students who have finished the curriculum and are now looking for a community to PT or do drills with.
Tentatively, we'll have weekly study-together sessions, voice channels, and a buddy system. See you on Discord:)
I can't quite use the invite link to join the discord. It says it's invalid
I've also added you on discord
Discord is great
Hey I'm in Vancouver would love to join one. Score in the 168-170 range
Hey I was trying to join the discord but the link is invalid
Hey guys I'm down to join. Currently the highest PT is 170. Want to get over 170 and stay stable above it
Hey David, wondering if the data from the old site will be migrated eventually to the new website? Thanks a lot!
|------------------30%------------------|--10%---|---------------60%------------------------| 100%
Cor AND NOT Dam Cor AND Dam NOT Cor
|--------------------Two-----------------| NOT Two|----Never know if it's Two or NOT Two-----| 100%
Cor: correctly addressed
Dam: damaged
Two: arrive within two days
Premises:
1. If Cor, then P(Dam) < 50%;
2. If Cor AND NOT Dam, then Two;
3. P(Two) < 50%;
---
Reasoning for P(NOT Cor) > 0:
Therefore, P(Cor AND NOT Dam) < 50%;
However, P(Cor AND Dam) < P(Cor AND NOT Dam) < 50%;
Therefore, P(Cor AND NOT Dam) + P(Cor AND Dam) < 50% + 50% = 1;
Therefore, P(Cor) < 1;
Therefore, P(NOT Cor) = 1 - P(Cor) > 0;
Therefore, there MUST BE letters that are misaddressed;
Therefore, (D) is proven because "a large portion" is flexible. It means "some" effectively;
---
Can we make step 10 even stronger?
We can obtain the minimum of P(NOT Cor) by doing the following:
SUPPOSE if NOT Cor, then NOT Two
That's the best-case scenario where ALL (Not Cor mails) arrive in (NOT Two) days, but three days; // To obtain the minimum number
P(NOT Two) > P(Cor AND NOT Dam) - P(Cor AND Dam) at a minimum;
E.g., if among correctly addressed mails, 40 are not damaged and arrive within 2 days, 10 are damaged and arrive within 3 days; Incorrectly addressed mails have to AT A MINIMUM have 31 mails. Suppose ALL incorrectly addressed, 10 + 31 = 41 > 40. Conditions satisfied.