STA 2023 Study Guide - Final Guide: Standard Deviation, Statistical Hypothesis Testing, Type I And Type Ii Errors
● Convenience
Sampling method that is applied when the first 10 students who entered the
classroom are considered into the sample
● Cluster
Sampling method is applied when a class is divided into biology majors and non-
biology majors and taking all biology majors into the sample
● Census and Parameter
both related to population data
● p-hat
an estimate of true proportion
● Ordinal
the level of measurement rating a dance performance ranging from excellent -
not so great
● P(A)
Given A and B are independent then P(A|B) is given by
● P(A)P(B)
Given A and B are independent then P(AnB) is given by
● 0
Given A and B are mutually exclusive then P(AnB) is
● 0
Given A and B are mutually exclusive then P(A|B) is given by
● {}
Given A and B are mutually exclusive then AnB is
● 68%
According to empirical rule states that approximately what percentage of the
observed data fall within one standard deviation of the mean
● 95%
According to empirical rule states that approximately what percentage of the
observed data fall within two standard deviation of the mean
● 99.7%
According to empirical rule states that approximately what percentage of the
observed data fall within three standard deviation of the mean
