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Standard Deviation

In: Elementary Probability Theory

Author

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  • Melvin Hausner

    (New York University, Washington Square and University College)

Abstract

In Chapter 5 we defined the mean μ = E(X) as an important single number associated with a random variable X. It was pointed out that the mean cannot replace X, because it gives no indication of how the values X(s) are distributed about the mean. In this chapter we introduce the numbers V(X), the variance of X, and σ ( X ) = V ( X ) ]]

Suggested Citation

  • Melvin Hausner, 1995. "Standard Deviation," Springer Books, in: Elementary Probability Theory, chapter 0, pages 207-234, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4615-1753-5_6
    DOI: 10.1007/978-1-4615-1753-5_6
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