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...
Sampling Techniques What is a population, a sample and the difference between them? The?population?refers to the?whole set?of things which you are interested in e.g. if a vet wanted to know how lon...
Normal Approximation of Binomial When can I use a normal distribution to approximate a binomial distribution? Why do we use approximations? If there are a large number of values for a binomial dist...
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...
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...
