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Elementary Terms
Types of Data
What is my scale of measure?
True or False
Statistical Methods
100
Entities on which data is collected
What are elements (or: units of observation)
100
Data that use numeric values to indicate "how much" or "how many"
What is quantitative data
100
Room numbers in a hospital
What is nominal
100
The purpose of statistics is to prove specific outcomes
False
100
A tabular summary of data showing the number of items in each of several non-overlapping classes
What is a frequency distribution?
200
A characteristic of interest for the elements
What is a variable
200
Data that can be grouped by specific categories
What is categorical data
200
SAT Exam Scores
What is interval
200
Every statistical method can be used regardless of what type of data measurement you have (nominal, ordinal, interval, etc)
False
200
A tabular summary showing the relative frequency for each class
What is a relative frequency distribution
300
All the facts and figures collected, analyzed and summarized for presentation and interpretation
What is data
300
This type of data, which describes nominal or ordinal attributes of specific entities, often is grouped with categorical data
What is qualitative data
300
A restaurant rating (in stars)
What is ordinal
300
Statistical Inference is a process of making estimates and testing hypotheses about the characteristics of a population
True
300
Intervals that data can be grouped into with specific ranges
What are classes
400
The art and science of collecting, analyzing, presenting, and interpreting data
What is statistics
400
Data collected at the same time or at approximately the same time
What is cross-sectional data
400
The amount of money spent on intermediate goods in a given period
What is ratio
400
You should always take very small samples. That way you have less data to have to enter and work with!
FALSE ....why?
400
If a large amount of the data lies in one direction (has a long tail) to the right, this data set is said to be
Positively Skewed or Skewed to the Right
500
A subset of the population
What is a sample
500
Data collected over several time periods
What is time-series data
500
The current range of body-temperatures in this room right now (in degrees Fahrenheit)
What is interval
500
The process of conducting a survey to collect data for the entire population is called a census.
True!
500
A distribution that shows the number of data items with values less than or equal to the upper class limit of each class
What is a cumulative frequency distribution