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A: Value of definite integral is given.

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A: The area under the Normal distribution curve represents the probability and the total area under the…

A: Substitute u for x+4. For  x=-3 u=-3+4u=1 For x=2 u=2+4u=6 Now the integral become:…

A: The objective is to determine the ratio of the number of men to the number of women earning…

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A: From the provided information, Z = 0.25 The shaded area can be written as: P (Z < 0.25)

A: We apply substitution rule for solving the integration

A: Using squeeze theorem

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A: It is required to identify the indicated z-scores from the shaded regions of the given graph.