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Statistics

TermDefinition
Mean A measure of the center, the average of the data.
Median It is the middle data value.
Mode The value that occurs most often.
Range The difference between the greatest value and the least value.
Inner Quartile Range Represents the difference between the third quartile and the first quartile. (Middle 50% of data)
Outlier A data point that varies significantly from the rest of the data.
Skewed-left The data has a long tail extending to the left.
Skewed-right The data has a long tail extending to the right.
Symmetrical The shape is symmetric, it can be divided into two halves that are mirror images of each other. (They DO NOT have to have perfect symmetry)
bi-modal The data has two modes or humps.
Uniform The data is all the same or flat.
Mean Absolute Deviation The average distance that the data points in a set of data are from the mean.
Sample Size The number of data points collected for the sample.
1st Quartile The median of the first half.
2nd Quartile The median of the second half.
Impossible Something will never happen.
Certain Something will definitely happen.
Equally probable Equally likely to occur or not occur and is exactly halfway between impossible and certain.
Likely Probability greater than 1 half, but less than 1.
Unlikely Probability greater than 0, but less than 1 half.
Complement The opposite of the event. Includes all the outcomes that were not part of the original event.
Created by: user-1970339
 

 



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