diff --git a/src/bin/config_parser/src/privacy/error_calculator.go b/src/bin/config_parser/src/privacy/error_calculator.go
index af03066..357d937 100644
--- a/src/bin/config_parser/src/privacy/error_calculator.go
+++ b/src/bin/config_parser/src/privacy/error_calculator.go
@@ -49,6 +49,7 @@
 		return -1, err
 	}
 
+	// For report types with an hourly contribution interval, the population is set to (24*population) pseudo-users.
 	var errorEstimate float64
 	switch report.GetReportType() {
 	case config.ReportDefinition_UNIQUE_DEVICE_HISTOGRAMS:
@@ -56,12 +57,11 @@
 	case config.ReportDefinition_UNIQUE_DEVICE_COUNTS:
 		errorEstimate = SingleContributionRapporRMSE(population, privacyEncodingParams)
 	case config.ReportDefinition_HOURLY_VALUE_HISTOGRAMS:
-		// (24 * population) pseudo-users to account for hourly values.
 		errorEstimate = SingleContributionRapporRMSE(24*population, privacyEncodingParams)
 	case config.ReportDefinition_FLEETWIDE_OCCURRENCE_COUNTS:
-		errorEstimate = MultipleContributionRapporRMSE(population, privacyEncodingParams, report.MaxCount)
+		errorEstimate = MultipleContributionRapporRMSE(24*population, privacyEncodingParams, report.MaxCount)
 	case config.ReportDefinition_FLEETWIDE_HISTOGRAMS:
-		errorEstimate = MultipleContributionRapporRMSE(population, privacyEncodingParams, 1)
+		errorEstimate = MultipleContributionRapporRMSE(24*population, privacyEncodingParams, 1)
 	case config.ReportDefinition_UNIQUE_DEVICE_NUMERIC_STATS:
 		if err := meanReportConfigurationError(report, minDenominatorEstimate); err != nil {
 			return -1, err
@@ -71,7 +71,6 @@
 		if err := meanReportConfigurationError(report, minDenominatorEstimate); err != nil {
 			return -1, err
 		}
-		// (24 * population) pseudo-users to account for hourly values.
 		errorEstimate = NumericStatsRapporRMSE(24*population, privacyEncodingParams, minDenominatorEstimate, report)
 	case config.ReportDefinition_FLEETWIDE_MEANS:
 		if err := meanReportConfigurationError(report, minDenominatorEstimate); err != nil {
diff --git a/src/bin/config_parser/src/privacy/error_calculator_test.go b/src/bin/config_parser/src/privacy/error_calculator_test.go
index ebb4eab..89df399 100644
--- a/src/bin/config_parser/src/privacy/error_calculator_test.go
+++ b/src/bin/config_parser/src/privacy/error_calculator_test.go
@@ -119,13 +119,13 @@
 		{args{&testMetric, &hourlyValueHistogram, 1, 20000, 0}, true, 34.19422624116276},
 
 		// Multi-contribution reports
-		{args{&testMetric, &fleetwideOccurrenceCount, 1, 10000, 0}, true, 10.796886170985388},
-		{args{&testMetric, &fleetwideOccurrenceCount, 10, 10000, 0}, true, 7.640513872793125},
-		{args{&testMetric, &fleetwideOccurrenceCount, 1, 20000, 0}, true, 15.269102854406052},
-		{args{&testMetric, &fleetwideOccurrenceCountHighMax, 1, 10000, 0}, true, 43.18754468394155},
-		{args{&testMetric, &fleetwideHistogram, 1, 10000, 0}, true, 10.796886170985388},
-		{args{&testMetric, &fleetwideHistogram, 10, 10000, 0}, true, 7.640513872793125},
-		{args{&testMetric, &fleetwideHistogram, 1, 20000, 0}, true, 15.269102854406052},
+		{args{&testMetric, &fleetwideOccurrenceCount, 1, 10000, 0}, true, 52.893723859652496},
+		{args{&testMetric, &fleetwideOccurrenceCount, 10, 10000, 0}, true, 37.430720721998675},
+		{args{&testMetric, &fleetwideOccurrenceCount, 1, 20000, 0}, true, 74.80302164673793},
+		{args{&testMetric, &fleetwideOccurrenceCountHighMax, 1, 10000, 0}, true, 211.57489543860999},
+		{args{&testMetric, &fleetwideHistogram, 1, 10000, 0}, true, 52.893723859652496},
+		{args{&testMetric, &fleetwideHistogram, 10, 10000, 0}, true, 37.430720721998675},
+		{args{&testMetric, &fleetwideHistogram, 1, 20000, 0}, true, 74.80302164673793},
 
 		// Mean reports
 		{args{&testMetric, &uniqueDeviceNumericStats, 1, 10000, 500}, true, 0.027891803930152177},