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Unformatted text preview: Probability for a Range From X Value 900 To X Value 2000 Z Value for 9000.823529 Z Value for 2000 0.470588 P(X<=900) 0.2051 P(X<=2000) 0.6810 P(900<=X<=2000) 0.4759 c. What percentage of the returns are between $1,800 and 2,000? Probability for a Range From X Value 1800 To X Value 2000 Z Value for 1800 0.235294 Z Value for 2000 0.470588 P(X<=1800) 0.5930 P(X<=2000) 0.6810 P(1800<=X<=2000) 0.0880 d. Ninetyfive percent of the returns are for less than what amount? Ninetyfive percent of the returns are for less than 2998.1...
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 Fall '11
 Kent
 Normal Distribution, Standard Deviation, Tax Returns

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