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Summary Mean, median, mode and Quartiles Grade 12 (2022) R50,00   Add to cart
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Summary Mean, median, mode and Quartiles Grade 12 (2022)
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This document explains mean, median, mode, Quartiles and Interquartile range as measures of central tendency in Data handling. This document is extremely applicable to primary and high school students and will definitely help with understanding the topic.

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  • June 11, 2022
  • 1
  • 2021/2022
  • Summary

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DATA
HANDLING
Measures of Central
Tendency
Measures of central tendency: Mean, median, mode



Mean : Averages the total data by the number of pieces of data

Median: the middle value in a list ordered from smallest to largest
Mode: The number that occurs most often

Example: 7; 3; 4; 13; 17; 4; 19
Mean: 67/ 7 = 9.57
Mode: 4
Median: 7; 3; 4; [13]; 17; 4; 19

Interquartile Range :
Example: [40; 40; 42; 46; 49;] 49; [53; 57; 58; 60; 61];
Median: (Q2) = 49 {Middle of whole data line}
(Q2) = 42 {Middle of first bracket before 49}
(Q3) = 58 { Middle of bracket after 49}
IQR = 58 - 42 {Q3-Q1}

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