1. Does it usually matter whether an argument’s data type is different from the data type of the parameter that it is being passed to? 2. Typically, what is a parameter variable’s scope? 3. Explain...

1. Does it usually matter whether an argument’s data type is different from the data type of the parameter that it is being passed to?

2. Typically, what is a parameter variable’s scope?

3. Explain the difference between passing by value and passing by reference.