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In Unit Four, students learn about the measures of dispersion and the role of these statistical terms in research analysis. For the Unit 4 Complete assignment, write a narrative essay (minimum 1,200 words) that addresses and discusses the questions and statements listed below. Use at least three scholarly references to support the essay and remember to demonstrate a thorough understanding of the READ and ATTEND sections. List references at the end of the essay in APA format and utilize in-text citations within the narrative to denote the information derived from the listed references:

• Explain the differences between dispersion and deviation and discuss how they compare to measures of central tendency.
• Define standard deviation, index of dispersion, and range. Discuss why they are not as clear as measures of central tendency.
• For the variables Home (p. 89), Arrest (p. 107), Education (p. 101), identify the correct measure of dispersion (standard deviation, index of dispersion, or range) for each variable and explain why it is appropriate. Report the values for the measure of dispersion for each variable.