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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.
a knoop microhardness measurement was made on a sample that resulted in a khn of 481when a load of 5120 kg was applied.
Stone Mountain near Atlanta, GA has a sky ride which a gondola is suspended from a cable that takes people to the top of Stone Mountain as well as back down. [MO4, MO5, MO6]. Using the First Law of Thermodynamics, what would be the most efficient way..
A cooler in an air conditioner brings 0.5 kg/s air at 35oC to 5oC, both at 101 kPa and it then mix the output with a flow of 0.25 kg/s air at 20oC, 101 kPa sending the combined flow into a duct. Find the total heat transfer in the cooler and the t..
We have 0.25 lb of refrigerant 134a at 35 psi, and a quality of x=0.15. If it is expanded, in a constant pressure process, to two times its original volume, determine the final temperature, and find the work of the constant process.
The pulley system shown is at rest when the motor M starts pulling in rope so as to lift the 119 lb cargo C. For the first second of operating, the motor is able to produce a tension in the rope of the form F0(1+t/T) where F0=40 lb. Neglect the inert..
Many good IT ideas have failed because the developers could not gain market acceptance or could not find a way to make money from their idea. In this Discussion, you will consider some business aspects of the Web. Consider the many Web search e..
fluid mechanics for chemical engineers.nevers2-11large hydrocarbon storage tanks normally have a valve on their vents
steam enters an adiabatic turbine at 3 mpa and 350 celsius and leaves the turbine at 75 kpa with a quality of 89. if
air in a piston-cylinder assembly expands slowly from an initial state where the pressure is 250 kpa and the volume is
Steam flows through a turbine. The inlet stream is at 1200 KPa and 290 C. The pressure at the exit is 75 KPa. A) Determine the quality and temperature of the steam at the exit. B) Determine the specific work produced by the turbine.
determine the average punching shear stress the circular shaft creates in the metal plate through section ac and bd.
A rigid wall, insulated container is divided into two regions by a removable wall. One region contains 0.1 lbm of CO at 100F, while the other region contains 0.2 lbm of CO at 150?F. A stirrer is inserted into the container and when the wall between t..
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