Number 2 for instance, is such a small chance it is not really worth mentioning. I believe white people get hit by lightning something like 6 times more likely than blacks and it happens way more than being unarmed and shot by police.
The population of white people is about 6 times bigger. That should mostly explain the lightning disparity.
The statistics on unarmed people being killed by police account for differences in population sizes. Also while that is a hot button issue it's really the tip of the iceberg for this subject. The body of work showing systemic racism is an ongoing problem in the US holds up just fine if you ignore police shootings altogether.
