【第一阶段前导班-第1节金融计算器-数量计算-4课】

Time Value: Required interest rate on a security (Supply and demand of funds), EAR, Annuities, NPV and IRR, HPR

Discount rate: discount payments to be made in the future

Opportunity cost: a form of interest rate

Nominal risk-free rate = real risk - free rate + expected inflation rate

PV=FV/(1+I/Y)^N

Perpetuity: 没有到期日，不存在终值

HPR: percentage change in the value of an investment over th period it is hold

Statistical

Inferential statistics: sample, population, statistic, parameter

Mode, Median and mean

Absolute dispersion:

Range = maximum value - minimum value

Probability 

P(AB) = P(A/B) X P(B)

P(A or B) = P(A) + P(B) - P(AB)

独立事件 ： P(B/A) = P(B)

Probability function: p(x) = P(X=x) 离散型

f(x) - P(x1<=X<=x2) 连续型

F(X) = P(X<=x) 累计分布函数

Hypothesis Testing