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Summary Statistics: Graphs That Enlighten or Deceive Notes
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  • Course
  • STA112
  • Institution
  • Ajman University

These 7-pages of handwritten digital notes about the topic of graphs that enlighten or deceive will for sure spice up your studying and provide information. I personally wrote this during studying for my Statistics class and fortunately, I scored well on the affiliated exams after using these notes...

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Document information

  • June 1, 2023
  • 7
  • 2022/2023
  • Summary

Subjects

  • graphs
  • statistics
  • digital
  • handwritten
  • notes

Written for

  • Ajman University
  • STA112
All documents for this subject (1)

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Statistics ~ Graphs that enlighten or deceive

,Frequency distribution:shows how data are partitioned among several
categories by listing the categories along w/the
number frequency) of data values in each ofthem
->
Helps us to understand the nature ofthe distribution of a data set
->
Helpful in organizing and summarizing data


Lower class limits:smallest numbers thatcan belong to each of the
differentclasses

Upper class limits:largest numbers
class boundaries:numbers used to separate the classes two gaps
created by class limits
class midpoints:values in the middle of the classes

class width:difference between 2 consecutive lower class limits in
a
frequency distribution


class width = (max.data) -
(min.datal ->
round up
for move
A ofclasses
convenient #


Distribution:Each class
Relative
frequency/Percent frequency
frequency is replaced
by a relative

frequency/percentage
Relative
frequency for a class frequency
-
for a class
Sum of all frequencies
↓

a sum oft he percentages freq. For a class 100%
x
must be very close to 100% sum of all frequencies

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