On average how many people die every day?

Yes, about 6,750 every day in the US.
In speaking of the current era, yes. In talking about all time, no.

There are 3 or 4 possible time periods where people do not die every day.

1. The days before humans existed.

2. The days when few humans existed, so days passed without a person dying.

3. The days when humans are going extinct, so days may pass without a person dying. This phase may or may not happen.

4. The days after humans.