# cdfBinomial {#cdfbinomial}

**Parent topic:**[Functions](../../Functions/category.md)

## Syntax {#syntax}

`cdfBinomial(trials, p, X)`

## Arguments {#arguments}

**trials** is a positive integer.

**p** is a floating number between 0 and 1.

*trials* and *p* are shape parameters.

**X** is a numeric scalar and vector.

## Details {#details}

Return the value of the cumulative distribution function of a binomial distribution.

## Examples {#examples}

```
cdfBinomial(10, 0.1, [1, 5, 9]);
// output: [0.736099, 0.999853, 1]

cdfBinomial(12,0.627, [1, 3, 5, 7, 9]);
// output: [0.000154, 0.009085, 0.114844, 0.483879, 0.88373]
```

