Let \mathrm{{\boldsymbol X}}_1, \ldots ,

  1. Let \mathrm{{\boldsymbol X}}_1, \ldots , \mathrm{{\boldsymbol X}}_ n \in \mathbb {R}^ d denote a data set and let\mathbb {X} =
    1. answers icon 1 answer
    2. views icon 80 views
  2. Let \mathrm{{\boldsymbol X}} \sim \mathcal{N}( \mathbf{0}, \Sigma ) where, for simplicity, \mathrm{{\boldsymbol X}} \in \mathbb
    1. answers icon 1 answer
    2. views icon 104 views
  3. Let \Sigma denote a covariance matrix for some random vector \mathrm{{\boldsymbol X}} \in \mathbb {R}^ d. (Assume that \mathbf
    1. answers icon 1 answer
    2. views icon 84 views
  4. Consider the statistical set-up from the previous problem. In particular, recall that \mathbf{u}= \frac{1}{\sqrt{5}} (1,2)^ T
    1. answers icon 1 answer
    2. views icon 97 views
  5. A \(m=20\,\mathrm{g}\) mass with charge \(q=+8\,\mathrm{\mu C}\) hangs from a spring of stiffness \(k=50\,\mathrm{N/m}\). If an
    1. answers icon 0 answers
    2. Jerry asked by Jerry
    3. views icon 503 views
  6. 3. Two small spheres of charge \( +5.0 \mu \mathrm{C} \) and \( -4.0 \mu \mathrm{C} \) are separated by a distance of \( 2.0
    1. answers icon 1 answer
    2. views icon 48 views
  7. Let {\boldsymbol \beta }\in \mathbb {R}^1 and let \ell _2({\boldsymbol \beta }) = \sum _{i=1}^2 \frac{Y_ i X_ i^ T {\boldsymbol
    1. answers icon 1 answer
    2. views icon 101 views
  8. 11. Light is passed through a single slit that has a width of \( 1.2 \times 10^{-7} \mathrm{~m} \). What is the wavelength of
    1. answers icon 1 answer
    2. views icon 32 views
  9. 7. A 61-kg skier, coasting down a hill that is at an angle of \( 23^{\circ} \) to the horizontal, experiences a force of kinetic
    1. answers icon 1 answer
    2. views icon 53 views
  10. A train in Japan can travel 813.5 miles in 5 hours​ ​Find the unit rate in miles per hour. A 162.7 miles/hr162.7\
    1. answers icon 1 answer
    2. views icon 20 views