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Statistics

QuestionAnswer
Median A measure of center. It is the middle data value.
Mode A measure of center. It is the value that occurs the most often.
Range A measure of variability. It is the difference between the greatest value and the least value.
Inner Quartile Range A measure of variability. It represents the difference between the third quartile and the first quartile.
Outliner The data point that varies significantly from the rest of the data. Will either be significantly larger or smaller than the observation.
Skewed - Left If the distribution has a long tail extending to the left it is skewed to the left.
Skewed - right If the distribution has a long tail extending to the right it is skewed to the right.
Symmetrical The shape is perfectly symmetric because it can be divided into two halves that are mirror images of each other.
Bi-modal If the distribution has two models or( humps )it is a bi-modal.
Uniform If the distribution of data is all the same or flat it is a uniform distribution. They have no mode and are considered symmetrical.
Sample size Describes a number of data points collected in the sample.
impossible Some events will never happen probability of 0.
certain Other events will definitely happen probability of 1.
equally probable Is exactly between impossible and certain.
Unlikely Have probabilities greater than 1/2 but less than 1.
Likely Have probabilities greater than 1/2 but less than 1.
quartile 1 Median of first half
quartile 3 Median of 2nd half
Probability The likelihood that an event will happen can be given a number value.
Complement A statistical event is the opposite of the event. all the outcomes that are not part of the original event.
Created by: user-1970348
 

 



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