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薛真 · 2020年03月04日

问一道题:NO.PZ2019040801000070

问题如下:

Analyst Amy uses a pseudo-random number generator to generate random numbers, which are continuosly and uniformly between zero and one. In the beginning, Amy define the initial seed value to generte random numbers sequences. If Amy wants to Improve the accuracy of random number sequences, then she can use a:

选项:

A.

large seed and initial value.

B.

large amount of replications and discarding the earliest random numbers.

C.

large number of replications and discarding the outliers.

D.

small seed and initial value.

解释:

B is correct.

考点:Random Number Generation

解析:本题说的是要提高随机数序列的准确度,这可以通过加大实验次数以及剔除前期生成的随机数来完成。

为什么要把最初生成的随机数去掉

1 个答案

orange品职答疑助手 · 2020年03月05日

同学你好,前期生成的随机数是指0-1之间的那个随机数。这是来求反函数的输入啊。但因为计算机的原因,我们求解随机数,需要先输入一个“种子”,相同的种子,可以生成一串相同的0-1之间的随机数。所以这个其实就不是真正意义上的随机了。我们需要把开头的一些数给剔除掉,来使它更随机一些。

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NO.PZ2019040801000070问题如下Analyst Amy uses a pseu-ranm number generator to generate ranm numbers, whiare continuosly anuniformly between zero anone. In the beginning, Amy fine the initiseevalue to generte ranm numbers sequences. If Amy wants to Improve the accuraof ranm number sequences, then she cuse a:A.large seeaninitivalue.B.large amount of replications anscarng the earliest ranm numbers.C.large number of replications anscarng the outliers.small seeaninitivalue.B is correct.考点Ranm Number Generation解析本题说的是要提高随机数序列的准确度,这可以通过加大实验次数以及剔除前期生成的随机数来完成。“所以这个其实就不是真正意义上的随机了。我们需要把开头的一些数给剔除掉,来使它更随机一些。”老师,您的解答,这里不太明白,您能否举个具体的例子?尤其是不是真正意义上的随机,把开头的一些数,这里

2024-05-23 15:37 1 · 回答

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2024-04-24 06:45 1 · 回答

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2023-05-21 21:37 3 · 回答

老师您好,最初生成的随机数不够随机?那后面生成的随机数就是够随机了吗?这个地方怎么理解

2021-09-03 20:46 1 · 回答

老师,这题没懂,可以帮忙下吗

2020-06-23 22:37 1 · 回答