NO.PZ202110140100000404
问题如下：
Simulation Approach 1 (historical simulation) differs from Approach 2 (Monte Carlo simulation) in that:
选项：
A.it is deterministic. B.a functional form of the statistical distribution for each decision variable needs to be specified. C.it assumes that sampling the returns from the actual data provides sufficient guidance about future asset returns.解释：
C is correct.
Approach 1 is a historical simulation and assumes that past asset
returns provide sufficient guidance about future asset returns.
A is incorrect because both approaches are non-deterministic and random in
nature. Approach 1 is a historical simulation, and Approach 2 is a Monte Carlo
simulation.
B is incorrect because Approach 1 is a historical simulation and each random variable of interest (key driver and/or decision variable) is randomly drawn from historical data. A functional form of the statistical distribution of returns for each decision variable needs to be specified for a Monte Carlo simulation, which is Approach 2.
老师能不能再解释下确定性是什么意思？两种都是非确定性、只有rolling window backtesting才是确定性（deterministic）的代表什么含义。
