listAverage function

double listAverage(
  1. Iterable<num> it
)

Average (mean) of numbers.

Implementation

double listAverage(Iterable<num> it) {
  if (it.isEmpty) {
    return 0;
  }
  num result = 0;
  for (num n in it) {
    result += n;
  }
  return result / it.length;
}