Class Notes (839,246)
United States (325,890)
Mathematics (225)
MAT 121 (54)
Lecture

MAT 121 Ch. 2

10 Pages
99 Views

Department
Mathematics
Course Code
MAT 121
Professor
Abdellatif Bourhim

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Description
Intro to Statistics and Probability Aug 28 Frequency Distribution When working with large data sets it is often helpful to organize and summarize the data by constructing a tableFrequency Table Used for large data sets can be summarizedAnalyze nature of dataWe get a basis for constructing important graphs Ex 50 scores from an exam Frequency TableClassFrequency Relative Frequency 120 2250 21 40 335041608850618012 125081100 25 2550 12Sample size total number of frequenciesRelative Frequencies Class Frequency divided by Sum of all FrequenciesCumulative Frequency Tableadding together all frequencies Ex see chartClassCumulative FrequencyLess that or equal to 202 Less than or equal to 405Less than or equal to 6013 Less than or equal to 8025Less than or equal to 10050Lower Upper Class Limits Lower Smallest number in the classUpper Largest number in the class
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