Recent content by jchiz24

  1. J

    Probability - Sum of Squares of Rolls of a Die

    Homework Statement Roll a fair die n times. Let Sn denote the sum of squares of the rolls. Thus, Sn is the sum of Xi^2, where Xi represents one roll. What are the mean and variance of sqrt(n) * (Sn/n - u), where u is the mean of Yn/n Homework Equations The Attempt at a Solution No...
  2. J

    Density Error Propagation/Significant Figures Based on Extreme Values

    Homework Statement The density of an object is found to be 976 g/L based on mass of 976 +/- 5g and volume of 1 +/- 0.01L. Determine the error in the density using extreme values (upper limit of mass divided by lower limit of volume, etc)Homework Equations I'm having difficulty determining how...
  3. J

    Intersection of Three events (probability)

    Homework Statement Show that for 3 events A, B, C, the probability P of the intersection of A, B, and C is greater than or equal to P(A) + P(B) + P(C) - 2. aka: P(A intersection B intersection C) > or = P(A) + P(B) + P(C) - 2 Homework Equations N/R The Attempt at a Solution Use...
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