Choose and evaluate a function from a list in C++11

Using C++, I need to choose a function from a list and then evaluate that function with some inputs. I know just enough to be dangerous, I've solved my problem through some magic, but I have questions regarding my solution. Here is a minimal working example:

double foo(double x) {return x+2;}
double bar(double x) {return x*7;}
double baz(double x) {return x-1;}

int main() {

  double x = 3;
  auto func_list = {foo,bar,baz};

  // This is chosen from an external source, 
  // setting to a fixed value for the example 
  int random_choice = 1;

  double y = (*(func_list.begin()+random_choice))(x);

  return 0;
}

Question: Is this the right way to chose a function from a list and evaluate it? auto here was a double-edged sword, it created something, but I don't know what type it is.