Statistics bar_chart Draw a bar chart bernoulli_variable Bernoulli variable binomial_variable Binomial variable boxplot Draw a boxplot central_moment Central moment computation chi_squared_variable variable coefficient_of_variation Coefficient of variation computation correlation_n Correlation computation, up to a factor correlation Correlation computation covariance Covariance computation density Density function of a random variable distribution Distribution function of a random variable exponential_variable Exponential variable extended_quartile Quartiles of a data sample geometric_mean Geometric mean computation geometric_variable Geometric variable harmonic_mean Harmonic mean computation histogram Draw a histogram interquartile_range Difference between third and first quartiles kurtosis Kurtosis computation mean Mean computation median Median computation mode Mode computation moment Moment computation normal_variable Normal variable pie_chart Draw a pie chart poisson_variable Poisson variable quantile Inverse of cumulative distribution quartile Quartile computation random Random number following a distribution regression_exponential Regression following an exponential function regression_line Regression following a linear function regression_logarithm Regression following a logarithm function regression_power Regression following a power law skewness Skewness computation standard_deviation_n Standard deviation computation, up to a factor standard_deviation Standard deviation computation standardize Standardization of a random variable student_t_variable -student variable uniform_variable Uniform variable variance_n Variance computation, up to a factor variance Variance computation