public void Calculate()
        {
            Results.Add(new BuildStabilityMetric
            {
                Date               = Date,
                FailureRate        = CalculateFailureRateFor(Builds),
                RecoveryTime       = CalculateAverageRecoveryTimeInHoursFor(Intervals),
                RecoveryTimeStdDev = Calculator.ConvertMillisecondsToHours(
                    Calculator.CalculateStandardDeviation(Intervals)),
                IgnoredTestCount = Builds.Sum(build => build.IgnoredTestCount)
            });

            Intervals.Clear();
            Builds.Clear();
        }