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 May4 comment How to find normal plane at particular point? Would I just set t=1 and solve the vector for the point? Then plug into the formula for a plane? @vadim123 Apr29 comment How to set up the integral for finding the volume of a solid in three dimensions? @RecklessReckoner The problem doesn't specify so I have been assuming it does not. Dec3 comment How to generate a continuous random variable with the density $f(x) = 1.5x^2, -1 < x < 1$? So would I just integrate 1.5x^2 between -1 and 1 for the answer? Nov6 comment How to find the probability of variables with joint density? Thanks, I understand part 3 now but could you help me a bit more on part 2? Would I just take the integral in respect to x from -1 to 1 and y from 0 to .6? Nov6 comment How to find probability based on percent of orders recieved and exponential amount of time to complete per order? I'd assume that as soon as the order arrives the specialists works nonstop until completion. Nov6 comment How to find time it takes to reboot a system which is a continuous variable with a density function? Thanks I didn't realize calculating C was essential to the second part which is what must have been throwing me off! Oct9 comment Probability of an unprepared student passes a quiz, 3 of 7 must be correct with 4 possible answers each? Then how would you calculate at least 3? Oct9 comment Let P(X=3)=0.4 and P(Y=2)=0.5. Find P(X=3,Y=2). I edited the question with additional information, such as X and Y are random variables and there may be no computable answer. Oct9 comment Let P(X=3)=0.4 and P(Y=2)=0.5. Find P(X=3,Y=2). I checked, and they are not independent.