# DESCRIPTIVE STATISTICS PART II: CENTRAL TENDENCY AND VARIABILITY

For the third component of the Session Long Project, write a 2- to 3-page essay in which you begin to discuss the spread of the data that you have been collecting by:

1. Compute the variance of the measurements that you have taken so far. Show your work.
2. Compute the standard deviation of the measurements that you’ve taken so far. Show your work.
3. Discuss the spread of the data you have been collecting. Be sure to describe the variance of distribution and the concept of standard deviation as a measure of dispersion in your response.

### SLP Assignment Expectations

Use the information in the modular background readings as well as resources you find through ProQuest or other online sources. Please be sure to cite all sources and provide a reference list at the end of the paper. Submit the paper as a Word document through the link provided for the assignment.

Length: 2–3 pages typed and double-spaced.

Your Case paper will be further evaluated based on the following criteria:

Precision (Excellent; Good; Average; Poor)

• Each question and or assignment requirement is addressed in the paper.

Clarity (Excellent; Good; Average; Poor)

• The paper is well organized, concise, reads clearly, and it is not confusing.

• The paper presents appropriate breadth covering the assignment questions/requirements.

Depth (Excellent; Good; Average; Poor)

• Presents key points that lead to deeper matters and issues.
• Integrates several points into coherent conclusions.

Critical Thinking (Excellent; Good; Average; Poor)

• The paper demonstrates good understanding and synthesis of the module background material.
• Logically incorporates key concepts presented in the background material into the overall analyses, key points and supporting discussions.
• Presents well-reasoned conclusions and position as well as convincing arguments in support of the same.

Writing Mechanics

• Grammar (Excellent; Good; Average; Poor)
• Spelling (Excellent; Good; Average; Poor)
• Vocabulary (Excellent; Good; Average; Poor)
• Referencing (Excellent; Good; Average; Poor)

Additional considerations to keep in mind while working on your Case Assignments:

Originality and Use of directly quoted material

• The purpose of each assignment is for you to present your understanding and synthesis of the background material and key concepts. Accordingly, this must be accomplished substantially in your own words.
• Use directly quoted material sparingly and only when preserving the exact words of an author is necessary. For purposes of this course, rarely should directly quoted material represent more than 5 percent to 10 percent of your entire case paper’s content. Composing a paper patched together from mostly quoted material is not acceptable.
• Be sure to properly reference all directly quoted material and include the in-text citations. All paraphrased information also requires reference citations at the end of the paraphrased section.