Mathematics

As some of you observe, I’ve been posting a handful of undergraduate and postgraduate materials or courses here. Some close students also asked me to share more on financial engineering. So [...]

This page contains all questions and answers asked by students from this class. The most recent questions will be at the top. MF26 We have that or or This is a worksheet from class. There is a [...]

This page contains all questions and answers asked by students from this class. The most recent questions will be at the top. MF26 Vectors Q7 [Homework] (i) Using ratio theorem, Since is [...]

This page contains all questions and answers asked by students from this class. The most recent questions will be at the top. MF26 Vectors Q7 [Homework] (i) Using ratio theorem, Since is [...]

So let us now continue study SRS. Recall in part 3, we introduced the idea of unit inclusion probability. Subsequently, we introduced , which is the sampling weight. The sampling weight of unit i [...]

Merry Christmas and Happy New Year to all the visitors! Thanks for following or reading. 🙂 Personally, Mr Teng has been really busy pursuing his personal interests. On a side note, I thought of [...]

So we formally introduced the estimators used in SRS previously. Now, we are interested in how good our estimators are, and if you recall, by good, I refer to accuracy (MSE), Precision (Variance) [...]

So here is a cheeky question with regards to cryptography, its the basis of public key encryption in Cryptography. I had a student asked about cryptography once, its a really interesting and [...]

Today we shall look at the first sampling method we introduced: Simple Random Sampling. Recall that we mentioned that this is the most basic form of probability sampling since it provides the [...]

So recall that we are interested on the statistical aspects of taking and analysing a sample, and a good sample will be representative in the sense that characteristics of interest in the [...]