Max0815

23 Questions
55 Answers

0

1201

1

+198

Partition generating function.

Let P(x) be the partition generating function, and let , where is the number of partitions of n containing no 1s or 2s.
Then is a polynomial. What polynomial(expanded form) is it?
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I find that the generating function read more ..

Max0815 Nov 12, 2018

0

1024

1

+198

Please help, it means a lot to me.

A connected planar graph G has 20 faces, and every vertex of G has degree exactly 4.
Find the number of vertices of G.

Max0815 Nov 11, 2018

+2

1417

3

+198

Proving partitions.

Let be the set of integers that are twice an odd number.
Prove that, for every positive integer n, the number of partitions of n in which no odd number appears more than once is equal to the number of partitions of n containing no element read more ..

Max0815 Oct 5, 2018

0

1037

2

+198

Marbles in Bags

Bag A has 3 white and 2 black marbles. Bag B has white 4 and black 3 marbles.

Suppose we draw a marble at random from Bag A and put it in Bag B. After doing this, we draw a marble at random from Bag B, which turns out to be white. Given this read more ..

Max0815 Sep 16, 2018

+1

1228

2

+198

Permutations

Let S be the set of permutations of whose first term is not 1.
If we choose a permutation at random from S, what is the probability that the third term is equal to 3?
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I am quite confused read more ..

Max0815 Sep 16, 2018

+2

1225

4

+198

What is committee forming argument, and how do i use it on this?

Prove that .

I have no idea how to start whatsoever, so help, hints, or the proof would be appreciated!

Max0815 Sep 14, 2018

0

932

4

+198

Hard C&P porblem with restrictions

Let a and b be events.]

Max0815 Sep 3, 2018

+1

1997

13

+198

Conditional probability

Four fair 6-sided dice are rolled. The sum of the numbers shown on the dice is 8. What is the probability that 2's were rolled on all four dice?
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I have tried finding read more ..

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Max0815 Aug 31, 2018

0

1111

8

+198

More math[lol]

There is 3 squairres and 5 tricks. show if it can be right.

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Max0815 Aug 22, 2018

0

999

4

+198

Mathmatical induction

I am confused to even start the problem, and it looks so simple, so help, hints, or the solution would be nice!!

Max0815 Aug 21, 2018

+1

1242

4

+198

Expected Value

A checker is placed in a random square in the diagonal of an ordinary 8x8 checkerboard (with all squares being equally likely).
Checkers are then placed in the squares that lie below and to the right of the first checker, including those squares that read more ..

Max0815 Jul 25, 2018

+1

1911

3

+198

Set theory and counting and probability

Max0815 Jul 20, 2018

+198

+1

total nonsense xD

Max0815Aug 23, 2018

+198

+1

um...ok well thanks i guess

Max0815Aug 23, 2018

+198

+2

This problem is alcumus and homework on another website.

Max0815Aug 22, 2018

+198

+2

Thank you to everyone who replied. You answers are appreciated!

Max0815Aug 22, 2018

+198

0

iDC solved it already, mods lock this thread

Max0815Aug 3, 2018

+198

0

PLEASE HELP ME!!!!!!!

Max0815Aug 3, 2018

+198

0

SOMEBODY PLEASE HELP

Max0815Aug 2, 2018

+198

0

thanks you, i was haveing a very hard time with this problem. Thanks cphill!!!

Max0815Jul 26, 2018

+198

0

there are 8 choices for the first checker...idk if it matters

Max0815Jul 26, 2018

+198

0

I see, thanks!!!!...also solved both.

Max0815Jul 21, 2018