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    Discrete random variables

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    Thirty per cent of patients undergoing particular diagnostic procedure require a sedative. In a random sample of ten patients undergoing this procedure, what is the probability that
    1. At least half will require a sedative?
    2. Fewer than 3 will require a sedative?
    3. At least 9 will not require a sedative?

    © BrainMass Inc. brainmass.com October 5, 2022, 1:25 am ad1c9bdddf
    https://brainmass.com/statistics/probability/discrete-random-variables-212334

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    SOLUTION This solution is FREE courtesy of BrainMass!

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    The heat of fusion of ice C1=335 J/K
    The temperature of ice =273K
    Mass of ice =100gm

    The heat capacity of water C2=335 J/K
    The temperature of water T2=273K
    Mass of water =100gm
    After mixing Let T be the temperature of the mixture.

    Then

    From it by substituting the values temperature of the mixture
    335(T-273)=4.18(335-T)
    T=273.76 K
    The change in entropy =

    =100X0.0875=8.75J/Kgm

    Please check the numerical value of the last result.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com October 5, 2022, 1:25 am ad1c9bdddf>
    https://brainmass.com/statistics/probability/discrete-random-variables-212334

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