1 1 vote An ant does a random walk in a two dimensional plane starting at the origin at time $0.$ At every integer time greater than $0,$ it moves one centimeter away from its earlier position in a random direction independent of its past. After $4$ steps, what is the expected square of the distance (measured in centimeters) from its starting point? $4$ $1$ $2$ $\pi$ $0$ Quantitative Aptitude tifrece2021 quantitative-aptitude geometry + – admin 429 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.
