Average Value - h1014v1

AVERAGES

Average Value - h1014v1_42

Mathematics Volume 1 of 2
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Review of Introductory Mathematics AVERAGES Average Value The summation symbol, , introduced in the first chapter, is often used when dealing with the average value, . x Using the first example in this chapter, the average value could have been expressed in the following manner: x_car N x_i i 1 N where: = the average value (cost) of a car x_car x_i = each of the individual car prices N = total number of cars The right side of the above equation can then be rewritten. x_car x₁ x₂ x₃ x₄ x₅ x₆ 6 substituting 10,200 for x₁, 11300 for x₂, 9,900 for x₃, etc. x_car 10,200 11,300 9,900 12,000 18,000 7600 6 = 11,500 x_car Rev. 0 Page 21 MA-01

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