Numerade

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Which of the following for loops correctly reads and sums all the values stored in the file linked with file object inFile? (the file has been opened and contains one integer per line) Question 10 options: tot = 0 for line in inFile: tot += line tot = 0 for number in inFile: tot += int(inFile.readline( )) tot = 0 for line in inFile: tot += int(line) for number in inFile: tot += number

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Now find the ARP reply that was sent in response to the ARP request. a) How many bytes from the very beginning of the Ethernet frame does the ARP opcode field begin? b) What is the value of the opcode field within the ARP-payload part of the Ethernet frame in which an ARP response is made? § Snippet: § c) Where in the ARP message does the “answer” to the earlier ARP request appear – the IP address of the machine having the Ethernet address whose corresponding IP address is being queried? 2. What are the hexadecimal values for the source and destination addresses in the Ethernet frame containing the ARP reply message?

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Improvements in artificial intelligence decreased the costs law firms. In the market for legal consultation (service provided by law firms) there will be a ? a. increase in quantity supplied and a decrease in equilibrium price. ? b. increase in supply and a decrease in equilibrium price. ? c. decrease in quantity supplied and an increase in equilibrium price. ? d. decrease in supply and an increase in equilibrium price.

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How is carbon dioxide mainly transported in the blood? As carbonic acid As carbon monoxide Dissolved in plasma As carbaminohemoglobin

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2. What sales volume would be required to make a profit of $20 000 in a new business venture in which the markup is 50% of sales, variable expenses are 14% of sales and fixed expenses are $52 000? 3. A company has variable costs of 58% of sales with fixed costs of $63 000.

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The trace of a square matrix A, denoted by tr(A), is defined to be the sum of the elements on the main diagonal of A. Let A and B be square matrices of the same size. Which of the following is equal to tr(AB)? * tr(A + B) tr(A)tr(B) tr(BA) tr(A) + tr(B) none of these

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1. Identify each of the following random variables as Discrete or Continuous. a. The volume of softened water used by a household in a given month b. The average time it takes to complete an ATM transaction c. The number of color blind men currently employed by the Federal government

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th a 11 are is ht to cal a prem est rates onds wit 12% b s worth e new mo ey for IB Typically, if a bond's YTM is greater than coupon rate, this bond's price will be priced at . 1) discount 2) none of the other three choices 3) par value 4) premium

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2. (2 points) Show that the sum of OLS residuals is 0, i.e. $\sum_{i=1}^{n} \hat{u}_i = 0$

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QUESTION 5 To appreciate just how rapidly the exponential function can change, even for modest changes in the argument, evaluate how less likely a random variable is to be at $4\sigma$ deviation than at one $\sigma$ deviation. (This standard language implies that we are working with the Gaussian distribution of the form $\frac{1}{\sqrt{2\pi\sigma}}e^{-x^2/2\sigma^2}$. "$3\sigma$ deviation" means the variable $x = 3\sigma$ and so on.)

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thomas a.