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Used to store data (textual and numerical) in rows and column called “cells”. Can manipulate this data using formulas
information that is gathered about an entire population.
Data collected by you.
A measured value that can change.
Uses a scale – 1 to 4 for example
Population is organized in groups. Groups Examples: Schools, Communities, Companies. A random sample of the groups is chosen. All the members of the groups would be surveyed.
Data that is collected over a period of time.
a random defined number which provides a measure of scale.
a conclusion that can be made about a population, which is based on a sample.
This occurs when one type of respondent is overrepresented because groupings of different sizes are polled equally. – Overrepresentation
a word of phrase sought over the Internet
variables that cannot be described numerically.
Respondent uses own words – allows for a wide variety of possibilities that are sometimes difficult to interpret.
a study that considers individuals from different groups at the same time.
This occurs when surveys are not returned – thereby influencing the results.
can’t be a fraction of a number, a percentage, or have a decimal.
Can be raw data or cumulative information depicted on a table.
A study that considers individuals over a long period of time.
an unintended influence when gathering data from a sample.
Data collected from other sources.
this occurs when the chosen sample does not accurately represent the population.
Used when sampling a fixed percent of the population
Population be divided into groups. A random sample of groups is chosen and then a random sample of members of the chosen group is taken.
Facilitates the storage and retrieval of a wide range of data
data that can be described using whole numbers.
factors in the sampling method that influence the result. – poor question design – interviewer tone and attitude
Using this sampling technique, requires that the population be divided into groups. These groups are called Strata.
Requires that all selections are equally likely and all combonation of selections are equally likely.
Can include a decimal, rational numbers –4/67 or 67
Samples from which the selected elements cannot be reintroduced into the population.
variables that can be measured numerically.
Numbers which can continue forever. ex- Pi
A statement or question that your project will answer or discuss.
Asking someone to rate one particular thing.
data that are only measurable with real numbers
the respondent must choose from a given list of responses. These responses are easily analyzed.
Employs Checkmarks for selection
A visual display use in brainstorming to show relationships → Flow Charts
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