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# Stats Keywords

TermDefinition
Population The entire group being studied
Data An unordered list of gathered responses
Primary data Data that has been collected by the person who is going to use it
Secondary data Data that has been collected by someone other than the person who is going to use it
Census A survey of the entire population
Survey A method of collecting data
Questionnaire A set of questions designed to obtain data from a population.
Discrete A numerical value that can only be of a certain value
Continuous A numerical value that can be any number in a range
Ordinal Categorical data that follows a clear order
Nominal Categorical data where the order is irrelevant
Sample A smaller group that has been selected from the population.
Bias When results are skewed towards an outcome
Random When an object/person chosen with no preference over another
Axes Reference lines where values or labels can be written
X-axis The line on a graph that runs horizontally through (0,0)
y-axis The line on a graph that runs vertically through (0,0)
Mean The sum of all values divided by the amount of responses
Mode The value that appears most often in collected responses
Median The middle value of an ordered data set
Outlier A value that is very different from the rest of the data set
Range This is the difference between the maximum and minimum values in a data set
Quartile Dividing the ordered data set into four sets with an equal amount of responses in each
Interquartile range Measure of spread between the Upper Quartile and the Lower Quartile.
Quartile 1 The data value that is one quarter of the way through the data.
Quartile 3 The data value that is three quarters of the way through the data
Created by: gcallan

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