Question

Expected number of coin tosses to get one head and one tail consecutively

score 3.1k · Answer 1 · 2026-04-16 09:46:42

3.1k

Views

Expected number of coin tosses to get one head and one tail consecutively

Published on 16 Apr 2026 - 9:46

score 91 · Answer 2 · 2026-04-17 00:10:23

91

Views

integral and mathematical expectation of $\operatorname{sech}⁡^2(x)$

Published on 17 Apr 2026 - 0:10

score 164 · Answer 3 · 2026-04-14 11:27:48

164

Views

Mean and variance of how much a random customer spends

Published on 14 Apr 2026 - 11:27

score 119 · Answer 4 · 2026-04-16 16:46:05

119

Views

$X$ a random variable; if $E[(b_i, X)^2] \lt \infty$ for basis $b_i$ of $(V, (\cdot, \cdot))$, then $\text{Cov}(X)$ exists.

Published on 16 Apr 2026 - 16:46

score 1.3k · Answer 5 · 2026-04-16 04:56:10

1.3k

Views

When can we say that $E[X^2] - E[X]^2 \geq 0$ for a real-valued random variable $X$?

Published on 16 Apr 2026 - 4:56

score 366 · Answer 6 · 2026-04-15 17:01:02

366

Views

Draw Balls from an Urn Without Replacement with Probability Drawing Proportional to Size of Ball.

Published on 15 Apr 2026 - 17:01

score 639 · Answer 7 · 2026-04-11 20:16:30

639

Views

Using Jensen's inequality to prove another inequality?

Published on 11 Apr 2026 - 20:16

score 322 · Answer 8 · 2026-04-12 16:03:14

322

Views

Proving an inequality of the expectation of concave functions?

Published on 12 Apr 2026 - 16:03

score 39 · Answer 9 · 2026-04-16 13:24:20

39

Views

Is there any probability measure $\mathbb{Q}$ such that $\lim_{h\rightarrow 0}\mathbb{E}_{\mathbb{Q}}\left(\mathbb{1}_{[x,x+h]}(\xi)\right)\neq 0$?

Published on 16 Apr 2026 - 13:24

score 1.6k · Answer 10 · 2026-04-14 03:25:56

1.6k

Views

Determine the expected value of $\sin X$.

Published on 14 Apr 2026 - 3:25

score 23 · Answer 11 · 2026-04-10 04:18:29

23

Views

Correlation Coefficient calculation question

Published on 10 Apr 2026 - 4:18

score 107 · Answer 12 · 2026-04-09 20:38:46

107

Views

Expectation related with convergence

Published on 09 Apr 2026 - 20:38

score 74 · Answer 13 · 2026-04-11 03:33:16

74

Views

Constants in probability function, e.g. P(cX = cx). What happens to them?

Published on 11 Apr 2026 - 3:33

score 366 · Answer 14 · 2026-04-11 15:31:38

366

Views

Expected value when rolling dice

Published on 11 Apr 2026 - 15:31

score 548 · Answer 15 · 2026-04-10 19:06:43

548

Views

Is an expectation of a concave function still concave

Published on 10 Apr 2026 - 19:06

List Question

Expected number of coin tosses to get one head and one tail consecutively

integral and mathematical expectation of $\operatorname{sech}⁡^2(x)$

Mean and variance of how much a random customer spends

$X$ a random variable; if $E[(b_i, X)^2] \lt \infty$ for basis $b_i$ of $(V, (\cdot, \cdot))$, then $\text{Cov}(X)$ exists.

When can we say that $E[X^2] - E[X]^2 \geq 0$ for a real-valued random variable $X$?

Draw Balls from an Urn Without Replacement with Probability Drawing Proportional to Size of Ball.

Using Jensen's inequality to prove another inequality?

Proving an inequality of the expectation of concave functions?

Is there any probability measure $\mathbb{Q}$ such that $\lim_{h\rightarrow 0}\mathbb{E}_{\mathbb{Q}}\left(\mathbb{1}_{[x,x+h]}(\xi)\right)\neq 0$?

Determine the expected value of $\sin X$.

Correlation Coefficient calculation question

Expectation related with convergence

Constants in probability function, e.g. P(cX = cx). What happens to them?

Expected value when rolling dice

Is an expectation of a concave function still concave

Trending Questions

Popular # Hahtags

Popular Questions