|q⟩
Bad Qubits
Play
Quest
Questions
Learn
Playground
☕
← Question Bank
True / False
True or false: for a classical fair-coin random walk on a line, the position after
t
t
t
steps has variance
V
a
r
(
X
t
)
=
t
\mathrm{Var}(X_t) = t
Var
(
X
t
)
=
t
, so the typical distance from the origin grows as
t
\sqrt{t}
t
(diffusive spreading).
True
False
Check answer