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Returns the cumulative beta probability density function. The beta distribution is commonly used to study variation in the percentage of something across samples, such as the fraction of the day people spend watching television.

### Syntax

The BETADIST function syntax has the following arguments:

• X     Required. The value between A and B at which to evaluate the function.

• Alpha     Required. A parameter of the distribution.

• Beta     Required. A parameter of the distribution.

• A     Optional. A lower bound to the interval of x.

• B     Optional. An upper bound to the interval of x.

### Remarks

• If any argument is nonnumeric, BETADIST returns the #VALUE! error value.

• If alpha ≤ 0 or beta ≤ 0, BETADIST returns the #NUM! error value.

• If x < A, x > B, or A = B, BETADIST returns the #NUM! error value.

• If you omit values for A and B, BETADIST uses the standard cumulative beta distribution, so that A = 0 and B = 1.

### By adding the values you would like to calculate the BETADIST formula for, Excellentable will generate the outcome:

A
B
1
Description
Data
2
Value at which to evaluate the function
2
3
Parameter of the distribution
8
4
Parameter of the distribution
10
5
Lower bound
1
6
Upper bound
3
7
8