2022年澳洲AMC報名開啟-比賽時間-澳洲AMC課程
說到數學類國際學術活動，相信不少人首先想到的一定是AMC，可其實你知道嗎，除了眾所周知的美國數學學術活動，澳洲也有一項AMC數學學術活動！ 澳洲AMC數學學術活動 澳洲AMC，即澳大利亞數學學術活動（Australian ...
CIE A Level Maths: Probability & Statistics 2復習筆記2.3.2 E(X) & Var(X) (Continuous)
E(X) & Var(X) (Continuous) What are E(X) and Var(X)? E(X)is the?expected?value, or?mean, of a?random?variable X E(X) is the same as the population mean so can also be denoted by?μ Var (X)?is th...
CIE A Level Maths: Probability & Statistics 2復習筆記2.3.1 Probability Density Function
Calculating Probabilities using PDF What is a probability density function (p.d.f.)? For a?continuous random variable?, it is often possible to model probabilities using a function This function is...
CIE A Level Maths: Probability & Statistics 2復習筆記2.2.1 Linear Combinations of Random Variables
aX+b How are the mean and variance of?X?related to the mean and variance of?aX + b? If?a?and?b?are?constants?then the following results are true E(aX + b) = aE(X) + b Var(aX + b) = a2?Var(X) Note t...
CIE A Level Maths: Probability & Statistics 2復習筆記2.1.1 The Poisson Distribution
Properties of Poisson Distribution What is a Poisson distribution? A Poisson distribution is a?discrete probability distribution What are the important properties of a Poisson distribution? The?mea...
CIE A Level Maths: Probability & Statistics 2復習筆記1.2.3 Confidence Intervals
Confidence Interval for μ What is a confidence interval? It is?impossible?to find the?exact value?of a population parameter when taking a sample The best we can do is find an?interval?for which the...
CIE A Level Maths: Probability & Statistics 2復習筆記1.2.2 Distribution of Sample Means
Sample Mean Distribution What is the distribution of the sample means? For any given population it can often be difficult or impractical to find the true value of the?population mean,?μ The populat...
CIE A Level Maths: Probability & Statistics 2復習筆記1.2.1 Unbiased Estimates
Unbiased Estimates What is an unbiased estimator of a population parameter? An?estimator?is a?statistic?that is used to estimate a?population parameter When a sample is used with the estimator, the...
2022年馬歇爾學會經濟論文比賽投稿本周截止，最后3天！
馬歇爾學會經濟論文比賽 距離投稿結束僅剩3 天！ 馬歇爾學會經濟論文比賽 馬歇爾學會經濟論文學術活動（Marshall Society Essay Competition）由英國劍橋大學經濟學會舉辦，成立于1927年，該學術活動針對全球A Le...
