Finding Sigma and Mu How do I find the mean (μ) or the standard deviation (σ) if one of them is unknown? STEP 4: Solve the equation How do I find the mean (μ) and the standard deviation (σ) if both...
Normal Distribution - Calculations Calculating Normal Probabilities How do I find probabilities using a normal distribution? It is likely that your calculator has a function that can find normal pr...
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 b...
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...
Properties of Geometric Distribution What is a geometric distribution and its notation? A geometric distribution is a discrete probability distribution Each trial has only two outcomes Broadly labe...
Calculating Binomial Probabilities Where does the formula for a binomial distribution come from? The formula allows statisticians to quickly find probabilities for larger values of n without needin...
Properties of Binomial Distribution What is a binomial distribution? A binomial distribution is a discrete probability distribution The discrete random variable X follows a binomial distribution if...
E(X) & Var(X) (Discrete) 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 For a discrete random variable, it is calculated by: L...
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...
