Arrange three models in lineup
In a group lineup of 7 models in a commercial, 3 are male and 4 are female. In how many manners can you arrange three models in lineup if the first and the third should be a male but the second one should be a female?
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Methane gas is expanded adiabatically and reversibly from a volume of 1.43L, at a temperature of 25C and a pressure of 3 bars, until the volume is 2.86L. The heat capacity Cp of methane can be taken to be 35.31JK-1mol-1.
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Where mean number of defective prodcuts produced in factory in one day is 4. Find probability that in the given day there are any defective products ?
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