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A study of the response time for emergency care for heart attack victims in a large U.S. city reported that therewas a 1 in200 chanceof thepatient surviving the attack. That is, for a person suffering a heart attack in the city, P(survival) = 1/200 = .05. The low survival rate was attributed to many factors associated with large cities, such as heavy traffic, misidentification of addresses, and the use of phones for which the 911 operator could not obtain an address. The study documented the 1/200 probability based on a study of 20,000 requests for assistance by victims of a heart attack.
a. Provide a relative frequency interpretation of the .05 probability.
b. The .05 was based on the records of 20,000 requests for assistance from heart attack victims. How many of the 20,000 in the study survived? Explain your answer.
You are given two different gases that are at the same conditions and you mix them in equal volumes. Determine the molar entropy of mixing, ?
a rigid insulated vessel is divided into two compartments connected by a valve. initially one compartment occupying one
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an industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance
Air enters an adiabatic nozzle at 60 psia and 1020°F with low velocity and exits at 800 ft/s. If the isentropic efficiency of the nozzle is 90 percent, determine the exit temperature and pressure of the air.
how to solve set of ordinary differential equations of initial value problem in matlab using numerical integration
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water contained in a closed, rigid tank, initially saturated vapor at 200C, is cooled to 100C. determine the initial and final pressure, each in bar. locate the initial and final states on a sketches of the p-v and T-v digrams.
Consider the 2.0micrometer long GaAs device where the E-field is 5kV/cm and Mn*=.067M0. Calculate the transit time of an electron through the device if the mobility is 8000 cm^2V-s.
a 250mm long brass bar cte 20.5x10-6 0c is setup as shown below. initially when the temperature is 150c there is a
an insulated rigid container is separated into two parts using a partition that is free to move and the partition
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