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  1. TheJason

    How do you all like this theme?

    Lynk I like it, but I don't think it's good to change this one. Anyway, it's only $10 - so considered it for some of my forums. In fact, a group of my friends have made this one: ForumLife.Fun
  2. TheJason

    Probability of Independent Event

    Bag 2 is increased overall by 1 and the orange amount in the bag 2 is increased by 1. Note, this stuff is based on another problem I saw in a textbook.
  3. TheJason

    Probability of Independent Event - 2

    One bag has 2 orange balls and 1 grey ball. Another bag has 10 orange balls and 6 grey balls. What is the chance after one ball is moved from one to the other - that one picked ball in the 2nd group is orange? Choice 1 is orange and Choice 2 is grey. OK, @MarkFL, would we simply use the same...
  4. TheJason

    Probability of Independent Event

    Probability of Single Choice 2 in Group 2 = (Amount of Choice 1/Amount of Group 1)(Amount of Choice 1/Amount of Group 2) + (Amount of Choice 2/Group 1)(Amount of Choice 2/Amount of Group 2) @MarkFL Well, we are assuming two groups and two choices, but what if there were more groups and/or...
  5. TheJason

    Poisson and Guassian

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/sol84.pdf Here is the the solution. Thoughts?
  6. TheJason

    Poisson and Guassian

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob84.pdf Nice challenge here.
  7. TheJason

    Tower of Cylinders

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob85.pdf Another fun one.
  8. TheJason

    Shifted Intervals

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob86.pdf Any clue here?
  9. TheJason

    Leaving the Hemisphere

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob87.pdf Another good one.
  10. TheJason

    Ladder Envelope

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob88.pdf Sounds fun. Any idea?
  11. TheJason

    Rope Between Inclines

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob89.pdf Any idea?
  12. TheJason

    Game of NIM

    https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob90.pdf Anyone solve or have some ideas?
  13. TheJason

    Integration by Parts - What to choose?

    Yeah, I recall that one now.
  14. TheJason

    Integration by Parts - What to choose?

    \int\,u\,d(v) = u\,v\, - \int\,v\,d(u) How to choose which one is u and which one is v?
  15. TheJason

    How did this solution come about?

    The one on here: Challenge - Solve for x I know it was from solving for r and r did give 1, and 2 as answers, but only one of those gave a solution like what came about - if you know what I mean.
  16. TheJason

    Challenge Solve for x

    Yeah \dfrac{10^{3r}}{10^{2}} = 10^{3r}(10^{-2}) = 10^{3r + (- 2)} = 10^{3r - 2}
  17. TheJason

    Challenge Solve for x

    in the part 10^{3r - 2} where did the minus 2 come from?
  18. TheJason

    Making a Directory Using phpBB

    I hope I can pull this off. Well, I want to use a paid mod and XenForo, but it's simply too expensive at the moment and also I want to make many directories. So I have some domains like MathLesson.us, BassLesson.us, GuitarLesson.xyz and nothing to do with them really. Some of them used to be...
  19. TheJason

    Curing Cancer

    Why cancer has not been cured Any thoughts on what needs to be done?
  20. TheJason

    Sand Pile Volume

    What mistakes were made in my attempt, aside from not going from the inside out?