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  • Question

  • Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values range from x = - ? to x = + ?. P(1 ? x ? 2)


  • Options
  • A. Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values
  • B. Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values
  • C. Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values
  • D. (e-b - e-2b)

  • Correct Answer
  •  

    Explanation
    P(x) = Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values ae-b|x|dx

    to get Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values apply Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values aebxdx + Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values ae-bxdx,

    we get Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values = Consider the probability density f(x) = ae-b|x| where x is a random variable whose allowable values .

    More questions

    • 1. An RC snubber circuit is used to protect a thyristor against :

    • Options
    • A. false triggering
    • B. failure to turn on
    • C. switching transients
    • D. failure to commutate
      • Discuss
    • 2. The displacement flux density at a point on the surface of a perfect conductor is = 2(ax - 3 az)c/m2 pointing away from the surface. The charge density at that point c/m2 will be

    • Options
    • A. 2
    • B. - 2
    • C. 4
    • D. - 4
      • Discuss
    • 3. To increase Q factor of a coil, the wire should be

    • Options
    • A. long
    • B. thin
    • C. thick
    • D. long and thin
      • Discuss
    • 4. Match the following:

      List I (DOS commands) List II (Meaning)
      A. ATTRIB 1. Displays all directories and subdirectories
      B. SCAN DISK 2. Moves files to another director
      C. MOVE 3. Checks the status of disc
      D. TREE 4. Hides a file


    • Options
    • A. A-1, B-2, C-3, D-4
    • B. A-3, B-4, C-2, D-1
    • C. A-2, B-3, C-4, D-1
    • D. A-4, B-3, C-2, D-1
      • Discuss
    • 5. Match the following:

      List I List II
      A. SSB Modulation 1. Transmission line
      B. ? . B = 0 2. Hilbert transform
      C. Model dispersion 3. Faraday's law
      4. Absence of magnetic monopoles
      5. Waveguides
      6. Phase locked loop


    • Options
    • A. A-1, B-3, C-5
    • B. A-5, B-4, C-2
    • C. A-6, B-4, C-5
    • D. A-2, B-4, C-5
      • Discuss
    • 6. Match the following:

      List I List II
      A. (? x E)ds = 0 1. Continuity equation
      B. rv.dv = Q 2. Ampere's law
      C. (J + D)ds 3. Gauss law
      D. -rvdv 4. Faraday's law
      E. H.dl = (? x H)ds 5. Stoke's theorem


    • Options
    • A. A-4, B-3, C-2, D-1, E-5
    • B. A-1, B-2, C-3, D-4, E-5
    • C. A-4, B-2, C-1, D-3, E-5
    • D. A-1, B-5, C-4, D-2, E-3
      • Discuss
    • 7. Match the following:

      List I (Command in WORD) List II (Meaning)
      A. END 1. The bar displays the current position of cursor
      B. HOME 2. Moves cursor to the beginning of current line
      C. Status 3. Moves cursor to end of document


    • Options
    • A. A-1, B-2, C-3
    • B. A-3, B-1, C-2
    • C. A-2, B-3, C-1
    • D. A-3, B-2, C-1
      • Discuss
    • 8. Match the following:

      List I List II
      A. Penetration frequency 1. Lowest frequency at which charged particles spiral in fixed magnetic field
      B. Optimum working frequency 2. Same as critical and frequency
      C. Gyro frequency 3. Highest frequency of radio waves that can be used
      D. Maximum usable frequency 4. The most effective frequency for ionosphere propagation of radio waves


    • Options
    • A. A-2, B-4, C-1, D-3
    • B. A-4, B-1, C-3, D-2
    • C. A-1, B-3, C-2, D-4
      • Discuss
    • 9. Match the following:

      List I List II
      A. Output of signal generator 1. Modulated
      B. Error signal from a synchro 2. Digital
      C. Output of a JK flip flop 3. Analog
      D. Signal received by radar 4. Stoichastic


    • Options
    • A. A-1, B-3, C-2, D-4
    • B. A-3, B-1, C-2, D-4
    • C. A-3, B-1, C-4, D-2
    • D. A-1, B-3, C-4, D-2
      • Discuss
    • 10. Match the following:

      List I List II
      A. TV 1. 1 kHz
      B. Radio 2. 3 kHz
      C. Telephony 3. 9 kHz
      D. Telegraphy 4. 5 MHz


    • Options
    • A. A-4, B-1, C-2
    • B. A-4, B-3, C-2
    • C. A-2, B-1, C-3
    • D. A-1, B-2, C-3
      • Discuss

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