+ ", min="
                + MANY_VALUES_STATS_ITERABLE.min()
                + ", max="
                + MANY_VALUES_STATS_ITERABLE.max()
                + "}");
  }

  public void testMeanOf() {
    assertThrows(IllegalArgumentException.class, Stats::meanOf);
    assertThrows(IllegalArgumentException.class, () -> Stats.meanOf(ImmutableList.<Number>of()));