IB DP Maths: AI SL复习笔记4.7.4 The t-test
Two-Sample Tests What is a t-test? A t-test is used to compare the means of two normally distributed populations In the exam the population variance will always be unknown What assumptions are need...
IB DP Maths: AI SL复习笔记4.7.3 Goodness of Fit Test
Chi-Squared GOF: Uniform What is a chi-squared goodness of fit test for a given distribution? What are the steps for a chi-squared goodness of fit test for a given distribution? Worked Example Chi-...
IB DP Maths: AI SL复习笔记4.7.2 Chi-squared Test for Independence
Chi-Squared Test for Independence What is a chi-squared test for independence? You will use a contingency table This is a two-way table that shows the observed frequencies for the different combina...
IB DP Maths: AI SL复习笔记4.7.1 Hypothesis Testing
Language of Hypothesis Testing What is a hypothesis test? A hypothesis test uses a sample of data in an experiment to test a statement made about the population The statement is either about a popu...
IB DP Maths: AI SL复习笔记4.6.2 Calculations with Normal Distribution
Calculating Normal Probabilities How do I find probabilities using a normal distribution? You will be expected to use distribution functions on your GDC to find the probabilities when working with ...
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...
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 ...
