Bu YifanStatistic — Distributions of Discrete random variablesIn this article, we would like to introduce three main kinds of distributions of discrete random variables, these are the Bernoulli…4 min read·Oct 29, 2020----
Bu YifanMachine Learning — Complete Linear RegressionLinear regression is a method that describes dependence relationships, a linear model establishes the relationship between a dependent…4 min read·Sep 17, 2020----
Bu YifanFinance — Investment Appraisal (Discounted Cash Flow Approach — NPV)There are basically two discounted cash flow (DCF) methods of investment appraisal: the net present value (NPV) and the internal rate of…2 min read·Sep 12, 2020----
Bu YifanFinance — Investment Appraisal (Traditional Methods)Stephen Lumby(1981) defined an investment decision as one which made by the investors or the top management, involves the company in a…4 min read·Sep 7, 2020----
Bu YifanStatistics — Hypothesis Testing“A thesis is something that has been proven to be true. A hypothesis is something that has not yet been proven to be true.”4 min read·Aug 29, 2020----