Coral Mine (minigame)

This will be a simulation of coral mine.

In order to make it interesting and not just some spam post:
Every user has to think of some mathematical problem or physics exercise and other one has to solve it quoting a new math or physics problem.
Moreover, try to find more difficult problems/exercises than it was before and try to solve it using your brains not a computer :P
Remember, here you getting 100 corals for every post you make, here, it comes a challenge with it.

Rules simple:
1. Do not post anything here, except the solution of the last quote and new math/physics exercise.
2. If the answer was right, author of the problem has to tip 200 corals to a user that solved it. So it is also an encouragement to make difficult exercises :P
3. Users that will be participating, once in a while, will randomly receive random sums of corals (from 100 to 1k) from Sour_Candy.

SO, LET'S MAKE SOME CORALS FELLAS: Four gentlemen have put off four identical hats in the locker room. What is the probability that on leaving at least one of them will get back his own hat ?

This will be a simulation of coral mine.

In order to make it interesting and not just some spam post:
Every user has to think of some mathematical problem or physics exercise and other one has to solve it quoting a new math or physics problem.
Moreover, try to find more difficult problems/exercises than it was before and try to solve it using your brains not a computer :P
Remember, here you getting 100 corals for every post you make, here, it comes a challenge with it.

Rules simple:
1. Do not post anything here, except the solution of the last quote and new math/physics exercise.
2. If the answer was right, author of the problem has to tip 200 corals to a user that solved it. So it is also an encouragement to make difficult exercises :P
3. Users that will be participating, once in a while, will randomly receive random sums of corals (from 100 to 1k) from Sour_Candy.

SO, LET'S MAKE SOME CORALS FELLAS: Four gentlemen have put off four identical hats in the locker room. What is the probability that on leaving at least one of them will get back his own hat ?

given this is a locker room and clothes in a locker room are placed within metal boxes with locks, i'm going to say 1, assuming no one forgets their combination.

where's my coral

also new problem:

Quote from: SourCandy on May 02, 2020, 06:48:44 am

This will be a simulation of coral mine.

In order to make it interesting and not just some spam post:
Every user has to think of some mathematical problem or physics exercise and other one has to solve it quoting a new math or physics problem.
Moreover, try to find more difficult problems/exercises than it was before and try to solve it using your brains not a computer :P
Remember, here you getting 100 corals for every post you make, here, it comes a challenge with it.

Rules simple:
1. Do not post anything here, except the solution of the last quote and new math/physics exercise.
2. If the answer was right, author of the problem has to tip 200 corals to a user that solved it. So it is also an encouragement to make difficult exercises :P
3. Users that will be participating, once in a while, will randomly receive random sums of corals (from 100 to 1k) from Sour_Candy.

SO, LET'S MAKE SOME CORALS FELLAS: Four gentlemen have put off four identical hats in the locker room. What is the probability that on leaving at least one of them will get back his own hat ?

given this is a locker room and clothes in a locker room are placed within metal boxes with locks, i'm going to say 1, assuming no one forgets their combination.

where's my coral

also new problem:

3

SOURCANDY TIPPED 470 CORAL FOR THIS POST

Quote from: woodneko on May 02, 2020, 08:20:05 pm

Quote from: SourCandy on May 02, 2020, 06:48:44 am

This will be a simulation of coral mine.

In order to make it interesting and not just some spam post:
Every user has to think of some mathematical problem or physics exercise and other one has to solve it quoting a new math or physics problem.
Moreover, try to find more difficult problems/exercises than it was before and try to solve it using your brains not a computer :P
Remember, here you getting 100 corals for every post you make, here, it comes a challenge with it.

Rules simple:
1. Do not post anything here, except the solution of the last quote and new math/physics exercise.
2. If the answer was right, author of the problem has to tip 200 corals to a user that solved it. So it is also an encouragement to make difficult exercises :P
3. Users that will be participating, once in a while, will randomly receive random sums of corals (from 100 to 1k) from Sour_Candy.

SO, LET'S MAKE SOME CORALS FELLAS: Four gentlemen have put off four identical hats in the locker room. What is the probability that on leaving at least one of them will get back his own hat ?

given this is a locker room and clothes in a locker room are placed within metal boxes with locks, i'm going to say 1, assuming no one forgets their combination.

where's my coral

also new problem:

3

>:(
wrong, didn't even have units, smh

Woodneko: wrong, the correct answer: 62.5%
Since Ozmiander didn't left a new math problem, the latest one going to be:
How come in free fall you feel weightless even though gravity is pulling down on you? (ignore air resistance when answering this question).

ITT SourCandy tricks us into doing his homework

Woodneko: wrong, the correct answer: 62.5%
Since Ozmiander didn't left a new math problem, the latest one going to be:
How come in free fall you feel weightless even though gravity is pulling down on you? (ignore air resistance when answering this question).

f=ma, you feel no force because you have reached terminal velocity and are no longer accelerating.

Find the MGF for x given the joint PDF f(xy)=e^(-y), 0<x<1, 0<y

whats a MGF, is a most goodest faggot? because its me. the answer is me.

whats a MGF, is a most goodest faggot? because its me. the answer is me.

correct

Hooray! Here's my puzzle
4 6 21
5 8 36
6 3 20
8 7 56
5 10 44
4 4 X

what is x?

science question: What portion of events are non repeating/irreproducible