# StatisticFormula Class

**.NET Framework 4.6 and 4.5**

Calculates statistical formulas.

**Namespace:**System.Windows.Forms.DataVisualization.Charting

**Assembly:**System.Windows.Forms.DataVisualization (in System.Windows.Forms.DataVisualization.dll)

The StatisticFormula type exposes the following members.

Name | Description | |
---|---|---|

Anova | Performs an ANOVA test to determine whether there is a statistically significant difference between the mean values of two or more groups of data. | |

BetaFunction | Returns the beta function value for two given values. | |

Correlation | Returns the correlation value for two data series. | |

Covariance | Returns the covariance value for two data series. | |

Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) | |

FDistribution | Returns the cumulative F distribution function probability. | |

Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) | |

FTest | Performs a two-sample F Test using the F distribution. This test is used to determine if the samples have different variances. | |

GammaFunction | Returns the gamma function value for the given variable. | |

GetHashCode | Serves as the default hash function. (Inherited from Object.) | |

GetType | Gets the Type of the current instance. (Inherited from Object.) | |

InverseFDistribution | Returns the inverse of the F cumulative distribution. | |

InverseNormalDistribution | Returns the inverse of the standard normal cumulative distribution. | |

InverseTDistribution | Returns the inverse t-value of the Students t-distribution as a function of probability and degree of freedom. | |

Mean | Returns the average of all data points stored in the specified series. | |

Median | Returns the median of all data points in the specified series. | |

MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) | |

NormalDistribution | Returns the probability for the standard normal cumulative distribution function. | |

TDistribution | Returns the probability for the T distribution (Student's distribution). | |

ToString | Returns a string that represents the current object. (Inherited from Object.) | |

TTestEqualVariances | Performs a T Test using Student's distribution (T distribution) with equal variances. | |

TTestPaired | Performs a T Test using Student's distribution (T distribution) with paired samples. This is useful when there is a natural pairing of observations in samples. | |

TTestUnequalVariances | Performs a T Test using Student's distribution (T distribution) with unequal variances. | |

Variance | Returns the variance for a series. | |

ZTest | Performs a Z Test using the Normal distribution. |

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