You are examining a group of 4 stock analysts within an industry. The average stock analyst correctly predicts the direction of a given stock 51% of the time. For these analysts, their accuracy has been 40%, 50%, 60%, and 70%. What is the mean absolute deviation of their accuracy from the average?
Answer(s): B
The mean absolute deviation = the sum of (as i goes from 1 to n) of the absolute value of (X_i - Xbar), divided by n. Here, we have [|40% - 51%| + |50% - 51%| + |60% - 51%| + |70% - 51%|]/4 = [11% + 1% + 9% + 19%] / 4 = 40%/4 = 10%.
Assume the least squares equation is Y' = 10 + 20X. What does the value of 20 indicate?
Answer(s): D
The regression is written as Y' = a + bX. The letter "a" is the Y intercept and b is the slope of the line. Y' is the predicted value of Y given a specific value of X. Here b = 20.
How much would you need to deposit today in order to be able to withdraw $2,500 in 2 years and $1,500 in 5 years, if the account has nothing in it today and interest is 8% per year, compounded annually?
Answer(s): C
Work this question as two compound interest problems. On the BAII Plus, press 2 N, 8 I/Y, 0 PMT, 2500 FV, CPT PV, which yields $2,143.35. Then press STO 1. Then press 5 N, 1500 FV, CPT PV, which yields $1,020.87. Then press + RCL 1 = to see the answer. On the HP12C, press 2 n, 8 i, 0 PMT, 2500 FV, PV. Then press STO 1. Then press 5 n, 1500 FV, PV. Then press RCL 1 + to see the answer. Note that the answer will be displayed as a negative number.
How many monthly deposits of $50, beginning next month, will you need to make into an account that pays 6% per year, compounded monthly, before you will have $20,000?
On the BAII Plus, press 6 divide 12 = I/Y, 0 PV, 50 PMT, 20000 +/- FV, CPT N. On the HP12C, press 6 ENTER 12 divide i, 0 PV, 50 PMT, 20000 CHS FV, n. Note that the HP12C will display 221 as the answer. Make sure the BAII Plus has the value of P/Y set to 1.
What annual interest rate, compounded annually, would cause a series of 10 deposits of $1,000 to accumulate to $18,000, if the first deposit is made one year from today?
On the BAII Plus, press 10 N, 0 PV, 1000 PMT, 18000 +/- FV, CPT I/Y. On the HP12C, press 10 n, 0 PV, 1000 PMT, 18000 CHS FV, i. Make sure that the BAII Plus has the P/Y value set to 1.
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took the test last week, i did have about 15 - 20 word for word from this site on the test. (only was able to cram 600 of the questions from this site so maybe more were there i didnt review) had 4 labs, bgp, lacp, vrf with tunnels and actually had to skip a lab due to time. lots of automation syntax questions.
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question #50 and question #81 are exactly the same questions, azure site recovery provides________for virtual machines. the first says that it is fault tolerance is the answer and second says disater recovery. from my research, it says it should be disaster recovery. can anybody explain to me why? thank you
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answer to this question "what administrative safeguards should be implemented to protect the collected data while in use by manasa and her product management team? " it should be (c) for the following reasons: this administrative safeguard involves controlling access to collected data by ensuring that only individuals who need the data for their job responsibilities have access to it. this helps minimize the risk of unauthorized access and potential misuse of sensitive information. while other options such as (a) documenting data flows and (b) conducting a privacy impact assessment (pia) are important steps in data protection, implementing a "need to know" access policy directly addresses the issue of protecting data while in use by limiting access to those who require it for legitimate purposes. (d) is not directly related to safeguarding data during use; it focuses on data transfers and location.
password lockout being the correct answer for question 37 does not make sense. it should be geofencing.
for question 4, the righr answer is :recover automatically from failures
question number 4s answer is 3, option c. i
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