Numerade

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The probability that a circuit will fail in adverse conditions is given as 0.269. If 4 of these circuits are connected in parallel, so that if one fails, the next one comes online, what is the probability that they will ALL fail?

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adjust the angles of the triange ABC for th following angular values and weights using the tabular approach and by methods of least square estimate: A=80 deg 14' 04", wt 1; B= 38 deg 37' 47" wt 2; C= 61 deg 07' 58", wt 4

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(6 marks) Find the maximum and minimum values of the function f(x, y, z) = x^2 + y^2 + z^2 subject to the constraints x + y + z = 9 and x + 2y + 3z = 20.

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One direct benefit provided by the International Classification of Diseases with regard to viral infection is A characterization of bacteriophage infection and classification B maintenance of a global database on morbidity and mortality stats for viral diseases C an exchange mechanism for bacterial DNA between two separate host cells for use in biotechnology D discovery of new antiviral drugs and mechanisms for use against emerging viral diseases E a mechanism for preventing chronic infection in underdeveloped regions of the world

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Consider the following multi-step process: NO + O$_3$ ? NO$_2$ + O$_2$ NO$_2$ + O ? NO + O$_2$

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WEEK 12 Homework.pdf WEEK 12 Homework NAME: $ \qquad $ DATE: $ \qquad $ CONTEXT: Paranormal and Housing Market Do majority of Americans believe in the paranormal? A research conducted by Huffington post concer ine this topic revealed $ 45 \% $ of the population do. Reaftorcom conducted its own investigation to see if homebuyers' decision to buy a house were affected by rumors or news of "hauntings" or any "paranormal activities". They sampled 1000 people using SPS and they discovered 357 were hesitant to purchase a house linked to a paranormal activity. 1. Is $ 45 \% $ a parameter or statistic? Explain. 2. What is the sample proportion ( $ \hat{p} $ or $ p \cdot h a t) $ ? 3. Is a normal model a good fit for the distribution of the sample proportion? Show your calculations. 4. Calculate the standard error (SE) of this sample. 5. Does increasing the sample size (n) affect the standard error (SE). Explain. 6. Estimate the true proportion of the population who believes in the paranormal by calculating the confidence interval at a $ 95 \% $ confidence level. State your conclusion using proper course vocabulary.

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If our residuals show a definite curvature, then there is _______ reducible error. ? too much ? too little ? neither too much nor too little

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15. a) Calculate the velocity of the electron for a one-dimensional crystal in the TB model, and prove that the velocity vanishes at the zone edge. b) Repeat (a) for a square lattice. Show that the velocity at a zone boundary is parallel to that boundary. Explain this result in terms of the Bragg reflection.

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The author notes that 'The Web has been a godsend to me as a writer. Research that once required days in the stacks or periodical rooms of libraries can now be done in minutes.' Do the powerful advantages of using the Internet necessarily mean that we have to sacrifice our ability to read deeply and think reflectively? The author acknowledges that 'the Net is becoming a universal medium, the conduit for most of the information that flows through my eyes and ears and into my mind' and that this puts him at risk for being a 'mere decoder of information' rather than a deep thinker about information. Would you say that this is true for you as well? Why or why not?

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Directions. Give what is asked in each number. Show your solution. 1. Sam and Alfie are brothers. After college graduation and being finally able to get a good job, they plan for retirement as follows. > Starting at age 24, Sam deposits P15,000 at the end of each year for 30 years. > Starting at age 42, Alfie deposits P30,000 at the end of each year for 20 years. Who will have the greater amount at retirement if both annuities earn 12% per year compounded annually?

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kyle d.