MATH 1342 Elementary Statistics
Review for test 1
Elementary Statistics: Review for test 1
About the test
Allowed materials:Scientific or graphing calculator One page notes (letter size): One side, hand-written, formulas, definitions and summary info only (no worked examples with numbers)There is no software use on this test.
Material covered:Sections 1.1-1.3, 2.1-2.4Data methods
Identify the cases and variables in a data set
Identify variables as either categorical or quantitative
Determine explanatory and response variables where appropriate
Recognize when it is appropriate to generalize a result from a sample to a population
Explain how to create a random sample, and recognize how a random sample avoids sampling bias
Explain how to create a random sample, and recognize how a random sample avoids sampling bias
Recognize when it is possible to infer causation from a result
Identify a confounding variable, and explain its link to both explanatory and response variables
Distinguish between an observational study and a randomized experiment
Explain how and why placebos and blinding are used in experiments
Distinguish between a completely randomized comparative experiment and a matched pairs experiment Categorical data
Choose an appropriate graph and summary statistic for categorical data
Use information about a categorical variable to find a proportion, with correct notation
Display information about a relationship between two categorical variables in a two-way table
Use a two-way table to find proportions
