normal curve
Gaussian distribution graph
A normal curve is the bell-shaped graph representing normal distribution in statistics—symmetrical, with most values clustered near the center and tapering equally on both sides.
It describes how many natural phenomena distribute: heights, test scores, measurement errors.
IQ scores follow a normal curve, with most people near 100.
- test scoresNumerical exam results
- meanAverage, or spiteful
- standard deviationSpread around the mean
- varianceSpread around the mean
- psychometricsPsychological measurement science
symmetry · inflection point · z-score · random variable · expected value · regression to the mean · skewness · histogram · exponential function · confidence interval · statistical significance · integral calculus · bell shape · IQ testing · signal processing · differential equations · quality control
- statisticsmean, median, mode, variance, standard deviation
- math visualsbar graph, bar chart, pie chart, line graph, scatter plot
- Probability DistributionsPDF, t-distribution, frequency distribution, Bernoulli, exponential
- distributionsuniform, binomial, exponential, bell-shaped, discrete
- Gaussian statisticsmean, sigma, mu, standard deviation, variance
- statistical curvest-distribution, ogive, sigmoid