Session__1_notes - Session 1: Think-Pair-Share Activity...

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Session 1: Think-Pair-Share Activity With your partner, write down what you already know about the field of statistics. Write examples of statistics that you encounter frequently. Try to come up with a definition.
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Descriptive statistics involves tabulating depicting, and describing sets of data. Quantitative – Characteristics that are continuous (measures of height; SAT scores) Qualitative – Categorical characteristics (i.e. gender, major, year in school)
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Inferential statistics are used to generalize descriptive characteristics from a sample to the population. Examples: Political polls Obtained at: www.usq.edu.au/users/mehryar/statsed / A handful represents the heap.
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A population is any set of people or objects with something in common. i.e. all first generation college students A sample is a subset of the population. i.e. a group of first generation college students at Penn State Measured by parameters (represented by Greek letters) Measured by statistics (represented by Roman letters)
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Variables are nonuniform characteristics of observational units . GRE Personality type Income Height Gender Ethnicity Speed SAT IQ Rating scale score GPA Variables can be classified into one of four measurement scales. Percentile rank Order of finishing 1 st , 2 nd , 3 rd
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Nominal measurement groups objects into classes or categories. Ordinal scales are used to rank a group of things from high to low. Interval scales include variables in which the magnitude of differences among the units is defined by the numbers, but there is no absolute zero.
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This note was uploaded on 01/27/2011 for the course EDPSY 400 at Pennsylvania State University, University Park.

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Session__1_notes - Session 1: Think-Pair-Share Activity...

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