Questions asked
Question 2 (1 point) Which one of the following is correct? Recommendations that processed foods in the diet should be reduced were first made in the 1990s. Electric cars contradict the theory that energy can be changed from one form to another. Brillat-Savarin claimed that in the 18th century the poor had a healthier diet than the rich. Victor Lindlahr discovered that Fleischmann's yeast contains all the essential amino acids. All body activities except for thinking require glucose. None of these responses is correct.
Let's assume an Expectation Maximization algorithm for training a one to one word alignment model like the one discussed in class. The translation probabilities generated from an estimation step is given below. Using the probabilities below, calculate the probabilities of all 6 possible word alignments between the Spanish phrase: un pollito amarillo and the English phrase: a yellow chick. Please round the answer to three significant figures ($1.45 \times 10^{-4}$ or .000145). These calculations are part of the next expectation step. In combination, with the alignments of additional sentence pairs, they will be used to generate the next set of translation probabilities. Translation Probabilities Source Words (Spanish) Target Words (English) el un amarillo pato pollito the .88 0 .04 .02 .06 a 0 .82 .09 .09 0 yellow .05 .04 .78 .06 .07 chick .14 0 .10 0 .76 duck .02 .03 .05 .9 0 Answers: List each possible alignment, along with the total probability, e.g., one possible alignment is: un/yellow pollito/chick amarillo/a and the probability is based on the table above. 1. 2. 3. 4. 5. 6.
Question 12 Inflation: always reduces real income. reduces the real income of workers when wages increase more than pri reduces the real income of workers when wages increase less than pric never reduces real income. increases the real income of workers only when wages increase less tha do.
How does cancer start? Cancer starts with a genetic mutation that makes cells grow and divide uncontrollably. Cancer starts when one cell communicates with another cell, telling it to differentiate into a muscle cell. Cancer starts when one cell destroys another cell. Cancer starts when our cells make ATP.
Active listening requires the following except paraphrasing speaker's message to confirm meaning empathy pacing the room actively asking questions
Question 9. Solve using the method of variation of parameters. a. $y'' - 2y' + y = t^{-1}e^t$. b. $\ddot{y} + 5\dot{y} + 6y = 18x^2$. c. $x'' + 4x' + 4x = e^{-2t}ln(t)$.
3. Consider the following data (table 1) reported during an outbreak of bubonic plague in Eyam, England. It can be described by the SIR model without demographics. (2) \frac{dS}{dt} = -\beta SI, \frac{dI}{dt} = \beta SI - \gamma I, \frac{dR}{dt} = \gamma I, where $S(0) = 254$ and $I(0) = 7$. (a) For $\beta = 0.0134$ and $\gamma = 2.19$ plot the model and the data. TABLE 1. Bubonic plague from year 1666. Date (1666) Susceptibles Infectives July 3/4 235 14.5 July 19 201 22 August 3/4 153.5 29 August 19 121 21 September 3/4 108 8 September 19 97 8 October 20 83 0 (b) Explain why this is not a good model by researching the way bubonic plague is transmitted. Write a more realistic model for this outbreak and plot its solutions.
Problem 6: A cylindrical horizontal core sample (see the following figure) was subjected to the following linear flow test conditions. Compute the sample's permeability in $cm^2$, darcy, and md. L = 10.0 cm., $\mu$ = 1.0 cp, diameter (d) = 2 cm, q = 12 cc/min. $p_1$=44.1 psig $p_2$=0 psig flow q =12 cc/min l-direction $l_1$=0 $l_2$=10
Consider the vector field $F(x, y, z) = (-7y, -7x, 3z)$. Show that $F$ is a gradient vector field $F = \nabla V$ by determining the function $V$ which satisfies $V(0, 0, 0) = 0$. $V(x, y, z)$
A project that provides annual cash flows of $22,000 for 6 years costs $62,000 today. a. If the required return is 15 percent, what is the NPV for this project? b. Determine the IRR for this project.
