Write a stub for the function whose function declaration is given next. Do not write a whole
double rainProb(double pressure, double humidity, double temp);
//Precondition: pressure is the barometric
//pressure in inches of mercury,
//humidity is the relative humidity as a percent, and
//temp is the temperature in degrees Fahrenheit.
//Returns the probability of rain, which is a number
//between 0 and 1.
//0 means no chance of rain. 1 means rain is 100%
//certain.
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