Statistics Mod 1 Exam Portage
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Statistics - Answer: encompass the mathematical field that allows us to organize, summarize,
describe, and interpret different forms of information
data (singular datum) - Answer: mathematical formulas and calculations to understand both
small and large sets of information
Name 3 reasons why statistics are important. - Answer: 1. Allows data to be described and
communicated succinctly and concisely
2. allow us to draw inferences about data, particularly when it is not feasible to collect
information from all members of a certain group
3. equips us with the necessary tools to make everyday decisions
What are variables? - Answer: Measurable characteristics that vary, or change, over time or
across people. can be divided into two categories.
what are the two categories variables can be divided into? - Answer: Qualitative and
quantitative
Qualitative - Answer: (categorical)
- non numerical
-discrete
-use labels or categories
-example: religion, ethnicity, eye color
, Quantitative - Answer: -measured in numeric terms
-divided further: discrete or continuous
-examples: weight, height, heart rate, and test scores
discrete - Answer: -organized by whole numbers
-Discrete variables are those that can only hold discrete values that can be obtained by
counting. An example would be the number of restaurants in a particular town
continuous - Answer: -Continuous variables can theoretically be broken down into infinitely
smaller, fractional components
-Examples of continuous variables include temperature, length, time, and speed.
experiment - Answer: a specific research methodology aimed at examining cause-effect
relationships
experimental studies - Answer: studies in which the independent variables are directly
manipulated and the effects on the dependent variable are examined
what are the important variables in experimental studies? - Answer: independent variables,
dependent variables, control variables, extraneous or confounding variables
independent variables - Answer: the variable manipulated by researchers to observe the
dependent variable
dependent variables - Answer: the variable measured for observation
Comprehensive Questions (Frequently
Tested) with Verified Answers
Save
Statistics - Answer: encompass the mathematical field that allows us to organize, summarize,
describe, and interpret different forms of information
data (singular datum) - Answer: mathematical formulas and calculations to understand both
small and large sets of information
Name 3 reasons why statistics are important. - Answer: 1. Allows data to be described and
communicated succinctly and concisely
2. allow us to draw inferences about data, particularly when it is not feasible to collect
information from all members of a certain group
3. equips us with the necessary tools to make everyday decisions
What are variables? - Answer: Measurable characteristics that vary, or change, over time or
across people. can be divided into two categories.
what are the two categories variables can be divided into? - Answer: Qualitative and
quantitative
Qualitative - Answer: (categorical)
- non numerical
-discrete
-use labels or categories
-example: religion, ethnicity, eye color
, Quantitative - Answer: -measured in numeric terms
-divided further: discrete or continuous
-examples: weight, height, heart rate, and test scores
discrete - Answer: -organized by whole numbers
-Discrete variables are those that can only hold discrete values that can be obtained by
counting. An example would be the number of restaurants in a particular town
continuous - Answer: -Continuous variables can theoretically be broken down into infinitely
smaller, fractional components
-Examples of continuous variables include temperature, length, time, and speed.
experiment - Answer: a specific research methodology aimed at examining cause-effect
relationships
experimental studies - Answer: studies in which the independent variables are directly
manipulated and the effects on the dependent variable are examined
what are the important variables in experimental studies? - Answer: independent variables,
dependent variables, control variables, extraneous or confounding variables
independent variables - Answer: the variable manipulated by researchers to observe the
dependent variable
dependent variables - Answer: the variable measured for observation
