error bar
Data variability marker
An error bar is a line extending from a data point on a graph to show the range of uncertainty or variability in the measurement.
Error bars typically represent standard deviation, standard error, or confidence intervals: The error bars on these results overlap, suggesting no significant difference between groups.
Wide error bars indicate less precision; narrow ones suggest more reliable data.
Estimated bounds for population parameter
- standard deviationSpread around the mean
- varianceSpread around the mean
- meanAverage, or spiteful
- sample sizeQuantity of observations taken
p-value · t-test · ANOVA · regression · correlation · normal distribution · outliers · statistical significance
Spread around the mean
- confidence intervalEstimated bounds for population parameter
- scatter plotGraph showing paired data points
- trend lineStatistical direction indicator
- y-axisGraph's vertical reference
x-axis · plotting · data point · whiskers · cap · range · symmetric · asymmetric
Accuracy of measurement
- accuracyDegree of correctness
- variabilityTendency to change
- fluctuationIrregular change over time
- repeatabilityCapacity for consistent duplication
reproducibility · tolerance · estimation · approximation · confidence level · calibration
confidence interval
Estimated bounds for population parameter
- standard deviationSpread around the mean
- varianceSpread around the mean
- meanAverage, or spiteful
sample size · p-value · t-test · ANOVA · regression · correlation · normal distribution · outliers · statistical significance · degrees of freedom
standard deviation
Spread around the mean
- confidence intervalEstimated bounds for population parameter
- scatter plotGraph showing paired data points
- trend lineStatistical direction indicator
y-axis · x-axis · plotting · data point · whiskers · cap · range · symmetric · asymmetric · legend
precision
Accuracy of measurement
- accuracyDegree of correctness
- variabilityTendency to change
- fluctuationIrregular change over time
repeatability · reproducibility · tolerance · estimation · approximation · confidence level · calibration
- chart partsaxis, x-axis, y-axis, data point, gridline
- chartspie chart, line graph, line chart, scatter plot, histogram
- statisticsmean, median, mode, variance, standard deviation
error bardata point
Individual recorded observation
certainty · known quantity · ground truth · central tendency
error, bar, errors, erred, erring, erroneous, erroneously, erratum, errata