Statistics symbols and notations
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This document discusses statistics symbols and notations. It defines an array as a collection of data organized in a table or rectangular form identified by capital bold letters like X, Y, Z, A. It also defines the element of an array X at the ith position as xi. The document then introduces the sigma notation to represent summations and lists some properties of summations like commutativity. It concludes with a quiz and answers section.
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Statistics symbols and notations
- 1. Statistics Symbols and Notations
- 2. Array – collection of data organized in table or rectangular form. They are identified by capital bold letters, X, Y, Z, A….
- 3. Given an array X, is the element of X at the ith position. Consider the array below. ix
- 4. Fill in the table
- 5. Define as gross sales for month i, and define as operating cost for month i ix iy
- 9. Fill in the table
- 15. Quiz w
- 16. Answers