Modelling with Distributions When should I use a binomial distribution? A random variable that follows a binomial distribution is a discrete random variable A binomial distribution is used when the...
Standard Normal Distribution What is the standard normal distribution? The standard normal distribution is a normal distribution where the mean is 0 and the standard deviation is 1 It is denoted by...
Calculating Normal Probabilities How do I find probabilities using a normal distribution? The equation of a normal distribution curve is complicated so the area must be calculated numerically You w...
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...
Calculating Binomial Probabilities How do I calculate, P(X = x) the probability of a single value for a binomial distribution? You should have a calculator that can calculate binomial probabilities...
Properties of Binomial Distribution What is a binomial distribution? A binomial distribution is a discrete probability distribution The discrete random variable follows a binomial distribution if i...
Discrete Random Variables 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 known unti...
Probability Formulae What is meant by probability formulae? If you have seen any of the other Revision Notes on probability, almost every one contains a formula These however are often disguised in...
Further Tree Diagrams What do you mean by further tree diagrams? The tree diagrams used here are no more complicated than those in the first Tree Diagrams revision note, however e.g. P(A') would b...
