Assuming standard scoring, the optimal area to aim for on the dartboard to maximize the player's score varies significantly based on the player's skill.
The skilled player should aim for the centre of the T20, and as the player's skill decreases, their aim moves slightly up and to the left of the T20.
At σ = 16.4 mm the best place to aim jumps to the T19.
As the player's skill decreases further, the best place to aim curls into the centre of the board, stopping a bit lower than and to the left of the bullseye at σ = 100.

Where σ  may refer to the standard deviation for a specific population: List of darts players.
Assuming standard scoring, the optimal area to aim for on the dartboard to maximize the player's score varies significantly based on the player's skill. The skilled player should aim for the centre of the T20, and as the player's skill decreases, their aim moves slightly up and to the left of the T20. At σ = 16.4 mm the best place to aim jumps to the T19. As the player's skill decreases further, the best place to aim curls into the centre of the board, stopping a bit lower than and to the left of the bullseye at σ = 100.
Where σ  may refer to the standard deviation for a specific population: List of darts players.
Darts