Lecture 4
... A random variable is a variable that takes on values in its range with some associated probability. An example may be the number of heads in one flip of a fair coin which can take the value zero with probability ½ or the value one with probability ½. So a random variable is associated with a probabi ...
... A random variable is a variable that takes on values in its range with some associated probability. An example may be the number of heads in one flip of a fair coin which can take the value zero with probability ½ or the value one with probability ½. So a random variable is associated with a probabi ...
1 Probability, Conditional Probability and Bayes
... The intuition of chance and probability develops at very early ages.1 However, a formal, precise definition of the probability is elusive. If the experiment can be repeated potentially infinitely many times, then the probability of an event can be defined through relative frequencies. For instance, ...
... The intuition of chance and probability develops at very early ages.1 However, a formal, precise definition of the probability is elusive. If the experiment can be repeated potentially infinitely many times, then the probability of an event can be defined through relative frequencies. For instance, ...
Microrsoft Word
... Introduction: The notion of statistics was originally derived from the word “state” since it has been the function of governments to keep records of population, birth, deaths, etc. The general function of statistics is to develop principles and methods that will help us make decisions in the event o ...
... Introduction: The notion of statistics was originally derived from the word “state” since it has been the function of governments to keep records of population, birth, deaths, etc. The general function of statistics is to develop principles and methods that will help us make decisions in the event o ...
standard deviation - University of Warwick
... Chi-square test: Are the observed frequencies in a table sufficiently different from what one would have expected to have seen (i.e. the expected frequencies) if there was no relationship in the population for the idea that there is no relationship in the population to be implausible? The more gener ...
... Chi-square test: Are the observed frequencies in a table sufficiently different from what one would have expected to have seen (i.e. the expected frequencies) if there was no relationship in the population for the idea that there is no relationship in the population to be implausible? The more gener ...
Two-way analysis of variance
... provides a statistical test of whether or not the means of several groups are equal, and therefore generalizes t-test to more than two groups. Doing multiple two-sample t-tests would result in an increased chance of committing a type I error. For this reason, ANOVAs are useful in comparing (testing) ...
... provides a statistical test of whether or not the means of several groups are equal, and therefore generalizes t-test to more than two groups. Doing multiple two-sample t-tests would result in an increased chance of committing a type I error. For this reason, ANOVAs are useful in comparing (testing) ...