GZXCSDSFGRFTRTDFFFFDFDFFRDGFGBRADE 8.pptx

GZXCSDSFGRFTRTDFFFFDFDFFRDGFGBRADE 8.pptx

• 1.
  MEASURES OF VARIABILITY FORUNGROUPED DATA Grade 8 - MATHEMATICS
• 2.
  LEARNING COMPETENCIES Define Range,Mean Deviation, and Standard Deviation. Find the range, variance and standard deviation. Find the characteristics of set of data using the measures of variability. Draw conclusions from statistical data using the measures of variability.
• 3.
  VARIABILITY is a reflectionof the individual differences between the people and events being investigated.
• 4.
  MEASURES OF VARIABILITY Describehow large the differences between individuals are on a trait.
• 5.
  RANGE & STANDARDDEVIATION The two frequently used measures of variability.
• 6.
  RANGE a set ofdata is the difference between the highest score (HS) and the lowest score (LS).
• 8.
  MEAN DEVIATION is ameasure of variability (or dispersion) in a data set which represents the average distance of data points from the mean.