Relative Frequency  - The frequency of an event relative to the total frequency , Frequency - the count of how many times a specific value or event occurs, Cumulative Frequency - is where the frequency is accumulated or added up, Cumulative Relative Frequency  - the sum of relative frequencies for a specific data value and all values before it in a distribution, Cumulative Frequency Histogram  - is a graphical representation that displays the running total of frequencies for data organized into intervals (classes). The height of each bar represents the sum of frequencies for that interval and all preceding intervals., Histogram - are displays of the data , Cumulative Frequency Polygons - also known as an ogive, is a line graph connecting cumulative frequencies at the upper endpoint of each class interval., Median - the middle value in an ordered dataset, separating the higher half from the lower half, Mode - the value that appears most frequently in a dataset, representing the most common or popular item, category, or score,

Probability and data: Data

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