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There is an algebraic approach to this problem and a "pick your own numbers approach." I went with the pick-your-own-numbers approach but I got the wrong answer by choosing x=2 and the right answer if x=3 Here's the question: The base of a rectangle is length x and the perimeter is 10, which of the following represents the rectangle's area? [a] 10-x^2 x(5-x) [c,d,e] The correct answer is x(5-x) but if I choose x=2 then options A and B work. Here are my questions: Is there any "rule" that would make me not pick x=2 for the base on a rectangle? (Does the base have to be greater than the height? I couldn't find any formal rule about that) If we use the pick-you-own-numbers approach, I guess it's true we MUST always check every answer choice right? If we get 2 answers that give the same result we then have to use different numbers. Does anyone have any insights about picking-your-own-numbers on a problem like this? Thank you so much I look forward to helping you! -
Hello Everyone, I couldn't find a math forum here. So, I posted it here thinking- an aspiring economist is also an induced mathematician:2cents:. Currently am taking Stats and Probability, and the course uses the program RStudio for simulation based problems. Since, I have no prior knowledge of RStudio or software basics, am struggling to get through the course. So, any help/hint would be highly appreciated. Questions:- (1) In this problem you will be looking at the random variable X=X1+X2+X3, where X1,X2,X3 are the random variables for a fair six-sided die. a)Using a simulation, estimate the distribution for X. Include the code for your simulation and any accompanying plots or tables with your solution. b)Calculate the distribution for X. (2) In this problem you will be looking at the random variable X=max(X1,X2,X3), where X1,X2,X3 are the random variables for a fair six-sided die. a)Using a simulation, estimate the distribution for X. Include the code for your simulation and any accompanying plots or tables with your solution. b)Calculate the distribution for X. Please help me, its due Monday the 4th. Thanks
