Enter the total sick and exposed and the total well and exposed into the Calculator. The calculator will evaluate the Experimental Event Rate.

## Experimental Event Rate Formula

EER = a/(a+b)

Variables:

- EER is the Experimental Event Rate ()
- a is the total sick and exposed
- b is the total well and exposed

To calculate the Experimental Event Rate, sum the total sick and exposed with the total well and exposed, then divide the total sick and exposed by the result.

## How to Calculate Experimental Event Rate?

The following steps outline how to calculate the Experimental Event Rate.

- First, determine the total sick and exposed.
- Next, determine the total well and exposed.
- Next, gather the formula from above = EER = a/(a+b).
- Finally, calculate the Experimental Event Rate.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

total sick and exposed = 57

total well and exposed = 182