1 of 8 0-day streak

Check intermediate results in a lattice-target investigation

Question 1 of 8

Calculator allowed

A marker starts at the origin. Each of 3 steps independently chooses E,N,W or S with probability1/4 each. Unless a changed scale is stated, each step is1 unit. An outcome is an ordered direction sequence; different sequences can end at the same point. Only the final endpoint is checked

For this supplied path the step length is 2 units. Directions in time order: S, E, W. The circular target has squared radius 1 square units

A=\{(x,y):x^2+y^2\le1\}