Using the data provided in Example 2-1, determine the accumulated frequency (a) between minus infinity and infinity

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Using the data provided in Example 2-1, determine the accumulated frequency

(a) between minus infinity and infinity (using Equation 2-1),

(b) between the mean and infinity (using Equation 2-1), and (c)

between the mean plus the two standard deviations and infinity (Equation 2-1). State any conclusions.

f(x) = 1  e  (4) 2 (2-1)

Example 2-1 Seventy-five people are tested for skin irritation due to of a specific dose of a substance. The

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