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esperanza valenzuela

esperanza v.

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Question 2. Probability In a population 7% of people are infected by a virus. A screening test for the virus shows positive (for infection) or negative. The correctly shows positive for 99% of cases of infected people. The test for the virus incorrectly shows positive for 3% of cases of uninfected people. a) What is the probability that the test shows positive when used on any person? b) What is the probability that someone is really infected when the test shows positive? c) What is the probability that someone is really infected when the test shows negative?

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What is the value for Power for R2 in Parallel Circuit #4? Question 22Select one: a. 321.6 W b. 638.4 W c. 960 W d. 1920 W

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The p-value for a hypothesis test turns out to be 0.0658. At a 2% level of significance, what is the proper decision? Reject $H_0$ Fail to reject $H_0$

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The fact that $f(n) \in O(g(n))$ does not imply which of the following? $f(n) + g(n) \in O(g(n))$ $g(n) \in \Omega(f(n))$ $f(n) \in O(g(n) - f(n))$

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Point charges are placed at (diagonally) opposite corners of a rectangle. The charges are of opposite signs but each has the same magnitude of 26.00 nC. The rectangle is of dimensions 42.00 cm by 77.00 cm. Point A is at the corner of this rectangle that is nearest to the positive charge and point B is at the intersection of the diagonals of the rectangle. The potentials at points A and B are VA and VB respectively. Determine the potential difference, VB - VA. Give your answer in units of V, accurate to the nearest whole number.

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Find the area under the curve $y = 1 + \frac{1}{x} + e^x$ between $x = 1$ and $x = 4$ $3 + 2\ln(2) + e^4 - e$ $2\ln(2) + e$ $3 + e^4$ 3

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Tell whether the equation has one, zero, or infinitely many solutions: 5(x-5)+19=5x-6. This equation has zero solutions.

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Question 3: Explain how would calculate the economic value created by the USPS, taking into account the positive externalities it produces.

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and PQ B. OQ and PQ C. OP and OQ D. none 8. In the figure at the right, which two angles are congruent by Vertical Angle Theorem (VAT)? A. \(\angle CAB \cong \angle CED\) B. \(\angle ABC \cong \angle EDC\) C. \(\angle BDE \cong \angle CDBA\) D. \(\angle ACB \cong \angle ECD\) 9. What property of congruence is used for the statement AB = AB?

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Find the derivative. y = 13x^{-2} - 7x^3 + 11x, find \frac{dy}{dx} A. \frac{dy}{dx} = -26x^{-1} - 21x^2 + 11 B. \frac{dy}{dx} = -26x^{-3} - 21x^2 C. \frac{dy}{dx} = -26x^{-1} - 21x^2 D. \frac{dy}{dx} = -26x^{-3} - 21x^2 + 11

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