# Class FTestResult

The result of statistical F test is stored in this class. If the F value is closer to 1.0 than FCriticalValueOneTail, then we can't deduce that first variance is smaller than second. But if F value is bigger than 1.0, then replace the series and run the test again. Maybe second series variance is smaller than first. Note: That if the second test also fails, this doesn't automatically prove that your variances are equal.

##### Inheritance

##### Inherited Members

**Namespace**: Syncfusion.Windows.Forms.Chart.Statistics

**Assembly**: Syncfusion.Chart.Base.dll

##### Syntax

`public class FTestResult`

### Constructors

#### FTestResult()

Initializes a new instance of the FTestResult class.

##### Declaration

`public FTestResult()`

### Properties

#### FCriticalValueOneTail

Gets critical value of F which corresponds to Alpha probability. The area under normal probability density curve of tail is equal to alpha probability.

##### Declaration

`public double FCriticalValueOneTail { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The F critical value one tail. |

#### FirstSeriesMean

Gets first series mean value. Series represents sample from studied population.

##### Declaration

`public double FirstSeriesMean { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The first series mean. |

#### FirstSeriesVariance

Gets first series variance. Series represents sample from studied population.

##### Declaration

`public double FirstSeriesVariance { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The first series variance. |

#### FValue

Gets calculated F value. ( Value of normally distributed random variable with mean=0, and variance=1 ).

##### Declaration

`public double FValue { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The F value. |

#### ProbabilityFOneTail

Gets the probability that the random variable has values at the tail, assuming that null hypothesis is true.

##### Declaration

`public double ProbabilityFOneTail { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The probability F one tail. |

#### SecondSeriesMean

Gets second series mean value. Series represents sample from studied population.

##### Declaration

`public double SecondSeriesMean { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The second series mean. |

#### SecondSeriesVariance

Gets second series variance. Series represents sample from studied population.

##### Declaration

`public double SecondSeriesVariance { get; }`

##### Property Value

Type | Description |
---|---|

System.Double | The second series variance. |