assertThat(LARGE_LONG_VALUES_STATS.populationVariance())
        .isWithin(ALLOWED_ERROR * Long.MAX_VALUE * Long.MAX_VALUE)
        .of(LARGE_LONG_VALUES_POPULATION_VARIANCE);
  }

  public void testPopulationStandardDeviation() {
    assertThrows(IllegalStateException.class, EMPTY_STATS_VARARGS::populationStandardDeviation);
    assertThrows(IllegalStateException.class, EMPTY_STATS_ITERABLE::populationStandardDeviation);