Tyler
Reputation
2,109
Top tag
Next privilege 2,500 Rep.
Create tag synonyms
 Nov 22 comment How Can I Find the Probability of Drawing This Sample? the name of this probability distribution is the multinomial distribution Nov 22 comment How Can I Find the Probability of Drawing This Sample? You need to account for the fact that maybe you drew RRWWBB, or RRWBWB, or RRBBWW, or... Nov 20 awarded Notable Question Oct 17 comment Does the implication $x>1\implies x>1/x$ need to be proven? Oct 15 comment If an empty set is an element of a set, $\{5,\{\}\}$ is that equal to just $\{5\}$? no, it is not true that the sets are equal. Oct 12 awarded Yearling Jul 19 comment Example of a homeomorphism on the real line? what do you mean "appropriate"? homeomorphism also need to be bijective, and don't necessarily need to be on compact sets. Think about 1/x Jun 24 awarded Good Answer May 30 comment How to Find a Probability with Monte Carlo Simulation since there are certainly many ways of creating a solution to the problem and i'm sure there are R packages that could help as well, it would be helpful to explain your thought process May 30 comment How to Find a Probability with Monte Carlo Simulation well can you edit your question to update your approach to the problem at least? maybe write your math answer in pseudo-code and someone can help translate it (although this isn't site isn't really geared towards programming and there are wonderful resources on the web for learning R) May 30 comment How to Find a Probability with Monte Carlo Simulation What are you having problems with, the math or the coding? May 18 awarded Popular Question Mar 22 revised Can't Get Present Value Answer? added 21 characters in body Mar 22 answered Can't Get Present Value Answer? Mar 22 comment Can't Get Present Value Answer? My only other pieces of advice are to make sure you are using the correct interest rate, and double checking your formula. 8% compounded quarterly is 2% effective quarterly, and I've never seen present value described as you have laid it out (see e.g. wikipedia) Mar 22 comment Can't Get Present Value Answer? Well then, it certainly seems as if the issue is that you are using the formula as directed instead of understanding how and why such a formula exists. I suggest writing down a cash flow diagram, the associated present value of the payments, and realizing you're summing a geometric series. Mar 22 comment Can't Get Present Value Answer? Can you tell us what you did 1 or 2 of those 20 times? If you understand how an annuity is calculated, the solution is immediate, this isn't a tricky problem. Mar 22 revised Can't Get Present Value Answer? corrected tags Mar 1 comment Properties of a transpose I'd use induction, and the property $(AB)^T = B^T A^T$ Mar 1 comment Properties of a transpose You don't know A is invertible, so how will the property you listed help you?