Intereting Posts

Compute $\int_{0}^{\infty}\frac{x\sin 2x}{9+x^{2}} \, dx$
Closed-forms for several tough integrals
Using Spherical coordinates find the volume:
A non-negative matrix has a non-negative inverse. What other properties does it have?
Matrix graph and irreducibility
Is there an integral that proves $\pi > 333/106$?
Topologically equivalent metric
Prove there are no hidden messages in Pi
Why does $\omega$ have the same cardinality in every (transitive) model of ZF?
A non-square matrix with orthonormal columns
The solution of $\min_x \max_{1\leq r \leq N} \left|\frac{\sin rMx}{\sin rx}\right|$
Is there a name for this strange solution to a quadratic equation involving a square root?
“Visualizing” Mathematical Objects – Tips & Tricks
Past coin tosses affect the latest one if you know about them?
Show that a differential equation satisfies Lipschitz condition

For reference, here is the full question:

Let X is a Geometric random variable with parameter p. You answers for the

following questions with be a function of p. What is the value of P(X = 5|X ≥ 3)

I don’t understand what that notation means. Is it asking for the value of P(X = 5) given that

- Improving Von Neumann's Unfair Coin Solution
- How to find a confidence interval for a Maximum Likelihood Estimate
- Expected number of steps to walk through points by multiple walkers
- Find the CDF with a given random variable
- Question about probability? World Population - (Question Revised)
- Continuous uniform distribution over a circle with radius R

X >= 3?

- The “find my car” problem: proper interpretation and solution?
- Uniform distribution with probability density function. Find the value of $k$.
- If you roll a fair six sided die twice, what's the probability that you get the same number both times?
- $W_n = \frac{1}{n}\sum\log(X_i) - \log(X_{(1)})$ with Delta method
- Analytical continuation of moment generating function
- The Last Man Standing
- Likelihood Functon.
- Calculate the expectation of Inverse Bessel Process
- a follow up question about modeling with exponential distributions
- Gamma Distribution out of sum of exponential random variables

By definition,

$$

P(X = 5 \mid X \geq 3) = \frac{P(X = 5 \land X \geq 3)}{P(X \geq 3)} = \frac{P(X = 5)}{P(X \geq 3)}.

$$

Generally, $P(A | B) = P(A \cap B)/P(B)$, for events $A,B$ with $P(B) > 0$.

- Minimum and Maximum eigenvalue inequality from a positive definite matrix.
- Isomorphism between $I_G/I_G^2$ and $G/G'$
- Which is greater: $1000^{1000}$ or $1001^{999}$
- Some trigo identities
- Intersection of compact and discrete subsets
- Maximum area of a square in a triangle
- Subgroups of $S_6$
- Finding the Dimension of a Matrix Polynomial: $W$ = { $p(B)$ : $p$ is a polynomial with real coefficients}
- Link between a Dense subset and a Continuous mapping
- Pacman on a Mobius Strip
- Give an example to show that a factor ring of a ring with divisors of 0 may be an integral domain
- Applications of algebraic topology
- Equivalence of Rolle's theorem, the mean value theorem, and the least upper bound property?
- Is it true that $p_{n}+p_{n+1}>p_{n+2}$ for all $n\geq 2\ ?$
- How to show that $m^*(A \cup B) + m^*(A \cap B) \leq m^*(A)+m^*(B)$ for any $A,B \subseteq \mathbb{R}$?