2022软科世界一流学科排名正式发布发布！
7月19日，高等教育评价专业机构软科正式发布“2022软科世界一流学科排名”。作为和泰晤士高等教育世界大学排名（THE）、QS世界大学排名、U.S. News世界大学排名齐名的的四大权威世界大学排名之一，软科（即ARWU）首...
IB DP Maths: AI SL复习笔记4.6.1 The Normal Distribution
Properties of Normal Distribution The binomial distribution is an example of a discrete probability distribution. The normal distribution is an example of a continuous probability distribution. Wha...
冲刺TOP30美本申请推荐的高含金量数学竞赛汇总
冲刺美本TOP30申请，这些数学类学术活动，给美本申请增加砝码。对于学术活动的选择，适合孩子的才是最好的。其次，则是从学术活动的含金量，参赛人数，整个比赛时间等全方面考量。 学术活动种类繁多，但是孩子的...
IB DP Maths: AI SL复习笔记4.5.2 Calculating Binomial Probabilities
Calculating Binomial Probabilities How do I calculate P(X = x): the probability of a single value for a binomial distribution? You should have a GDC that can calculate binomial probabilities You wa...
IB DP Maths: AI SL复习笔记4.5.1 The Binomial Distribution
Properties of Binomial Distribution What is a binomial distribution? A binomial distribution is a discrete probability distribution What are the important properties of a binomial distribution? Th...
IB DP Maths: AI SL复习笔记4.4.2 Expected Values
Expected Values E(X) What does E(X) mean and how do I calculate E(X)? E(X) means the expected value or the mean of a random variable X The expected value does not need to be an obtainable value of ...
IB DP Maths: AI SL复习笔记4.4.1 Discrete Probability Distributions
Discrete Probability Distributions What is a discrete random variable? A random variable is a variable whose value depends on the outcome of a random event The value of the random variable is not ...
IB DP Maths: AI SL复习笔记4.3.3 Sample Space Diagrams
Venn Diagrams What is a Venn diagram? A Venn diagram is a way to illustrate events from an experiment and are particularly useful when there is an overlap between possible outcomes A Venn diagram c...
艺术生留学去哪个国家比较好？
现在学习艺术类的同学越来越多选择出国留学，这确实是个不错的选择，英国美国有传统的名校，澳洲的院校也不差，意大利走在时尚的前沿，日本充满二次元，具体选择去哪个国家留学，还是需要看个人的专业和偏好，还...
IB DP Maths: AI SL复习笔记4.3.2 Conditional Probability
Conditional Probability What is conditional probability? Conditional probability is where the probability of an event happening can vary depending on the outcome of a prior event The event A happen...
IB DP Maths: AI SL复习笔记4.3.1 Probability & Types of Events
Probability Basics What key words and terminology are used with probability? An experiment is a repeatable activity that has a result that can be observed or recorded Trials are what we call the re...
IB DP Maths: AI SL复习笔记4.2.3 Linear Regression
Linear Regression What is linear regression? If strong linear correlation exists on a scatter diagram then the data can be modelled by a linear model Drawing lines of best fit by eye is not the bes...
