User RobertTheTutor - Mathematics Stack Exchange

RobertTheTutor

Member for 2 years, 7 months
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New England, USA

345 Answers

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Mathematical Statistics Question (Power Function)

answered Jun 14, 2022 at 14:11

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Why can't we divide set?

answered Mar 19, 2022 at 17:05

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Wrong Calculations of Mass Density Function?

answered Mar 19, 2022 at 12:50

1 vote

What is the difference between upper bound and least upper bound?

answered Feb 21, 2022 at 1:55

3 votes

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Properties like $\sin (\cos^{-1} x) = \sqrt{1-x^2}$

answered Nov 2, 2021 at 3:25

2 votes

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Find the number of 4-digit integers whose product of all digits is equal to 16

answered Aug 21, 2021 at 20:13

2 votes

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What is the measure of $\measuredangle B$ on the trapeze below?

answered Aug 20, 2021 at 2:36

1 vote

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Proving NOR is logically complete confusion

answered Aug 20, 2021 at 0:04

3 votes

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Find ellipse center from 3 points (in 3D)

answered Aug 17, 2021 at 12:21

5 votes

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Bayes Theorem where the number of tosses depends on tosses

answered Aug 12, 2021 at 18:12

0 votes

Find the lower bound of $P(-1 < X < 1)$

answered Aug 10, 2021 at 1:43

1 vote

With what force $M$ distributed with uniform density over the circle $x^2 + y^2 = a^2$, $z = 0$ act on $m$ located at the point $A(0,0,b)$.

answered Aug 10, 2021 at 1:36

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Circuits probability problem

answered Aug 6, 2021 at 13:58

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Chain Rule for Conditional Probability?

answered Aug 6, 2021 at 13:37

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what exactly is an isomorphism?

answered Aug 4, 2021 at 0:45

1 vote

Prove that the function is differentiable

answered Jul 30, 2021 at 1:01

1 vote

Why is the statistic $t=r \sqrt{\frac{n-2}{1-r ^2}} \approx t (n-2)$?

answered Jul 29, 2021 at 15:06

0 votes

Solving $\dfrac{x}{1-e^{-x}} = 3.034$

answered Jul 22, 2021 at 19:55

1 vote

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Rotation Matrix to Quaternion Expressions

answered Jul 23, 2021 at 4:42

2 votes

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Exact differential equation identity

answered Jul 8, 2021 at 22:49

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Proving $\sum_{k=1}^{n}\cos\frac{2\pi k}{n}=0$

answered Jun 12, 2021 at 3:04

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What is the range of a standardized distribution?

answered Jun 5, 2021 at 14:13

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$X,Y\sim U[0,5]$ are independent. What is the expectation of $Y$, given at least one of the RVs is less than $1$?

answered Jun 2, 2021 at 1:46

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How do I use this substitution for solving this differential equation ODE

answered May 31, 2021 at 15:21

2 votes

What does this shorthand mean |x| = -x > 0

answered May 29, 2021 at 21:01

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Is it a unique linear transformation?

answered May 27, 2021 at 0:16

1 vote

Find a Polar Equation for an Ellipse from Eccentricity

answered May 26, 2021 at 3:23

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Inequality of functions solving Riccati ordinary differential equations

answered May 25, 2021 at 12:50

1 vote

Going from trigonometric functions to algebraic functions.

answered May 24, 2021 at 21:07

1 vote

How do I calculate the following double integral and evaluate the limits of $\theta$?

answered May 23, 2021 at 2:02

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