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 20h comment Conditional Probability Question. Could you explain the first part though? How did you arrive at the probabilities for $P(TA|A)$ and $P(TA|B)$. To me those seem far less evident than all the rest, which is just the standard use of Bayes' rule. 1d comment Why are hyperbolas defined by two branches? Depends how you define a cone. If you define a cone by revolving a straight line around an oblique axis that intersects it, both "cones" form one single entity. Try making a plot of $z^2=x^2+y^2$ for instance. 1d comment Why are hyperbolas defined by two branches? There's another side to the cone that you don't see in your picture. But you do in this one. 1d answered Is the following probability distribution stationary/constant Apr22 reviewed Approve Derivative of $\frac{1}{2} x + x^2 sin{\frac{1}{x}}$ Apr20 comment Playing around with Geometric series. Where is my algebraic mistake? You could make your "argument" way shorter by just using the first and third equation and putting $r=1$ in the third. Apr20 comment Are basic trigonometry functions ( sine, cosine, tangent ) intuitive or memorized? The thing with intuition, is that we tend to call something intuitive only after we've spent years of work on them and they have become parts of our modes of thought. I personnally find linear algebra intuitive, but I experience every time when teaching my students that it isn't at all. Apr20 revised Clockwise rotation of $3\times3$ matrix? added 1 character in body Apr20 answered Clockwise rotation of $3\times3$ matrix? Apr19 comment What is the probability of recovering from 0 − 40 If I remember correctly, there is no limit for how long a deuce-advantage cycle could last, is there? Or are you just asking for the probability to get to a deuce? Which would just be $p^3$, assuming independence. Apr19 reviewed Approve How to draw marginal density function using R? Apr19 reviewed Approve Find lower bound of probability value using Chebyshev's inequality Apr16 comment Where have I gone wrong? A basic question in physics (Mechanics) The stone is thrown horizontally, gravity works vertically. That's what you missed. Also, check your units. Apr15 awarded Informed Apr14 comment number of integrable functions is greater than number of differentiable functions Riemann integrable? What do you mean by number? Do you agree that all continuous functions are Riemann integrable but not all of them are differentiable? Apr14 comment Spaceship transit times Since this is a spaceship, do you want the special relativistic formula for the problem? Apr14 comment Circle Geometry What do you mean with "a point on the y-axis is chosen"? Apr14 comment Inequality involving probabilities It does, note your $x_2$ needs $l$ in the numerator, not $p$. Divide your expression by $ph+(1-p)l$. And note that $px_1+(1-p)x_2=1$. Apr14 answered Inequality involving probabilities Apr7 revised Is there any generalization of Frobenius group? edited body