The **Expected Average Inventory Level** for an `S, S-1`

policy is the `inventory level`

that we expect given an `lead time demand level`

and an `initial stocking level`

.

# Examples

The `initial stocking level`

is `1`

and our `lead time demand`

is `1`

. The **Expected Average Inventory Level** is `0.5`

.

The `initial stocking level`

is `10`

and our `lead time demand`

is `19`

. The **Expected Average Inventory Level** is `0.5`

.

The `initial stocking level`

is `10`

and our `lead time demand`

is `5`

. The **Expected Average Inventory Level** is `5.5`

.