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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Question 3:
Question 1:
date = sys.argv[1]
sys.argv[1]
date = spark.conf.get("date")
input()
date = dbutils.notebooks.getParam("date")
dbutils.notebook.run
Question 528:
Question 23:The correct answer is Domain admin (option B), not Fabric admin.
Question 2:For question 2, the key concept is the Longest Prefix Match. Routers pick the route whose subnet mask is the most specific (largest prefix length) that still matches the destination IP. From the options:
Question 129:Correct answer: CNAME
compute.osAdminLogin
enable-oslogin
Question 2:
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For Question 7 - while the answer description indicates the correct answer, the option no. mentioned is incorrect. Nice and Comprehensive. Thankyou
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Helpful to test your preparedness before giving exam
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Question 1, Ans is - Developer,Standard,Professional Direct and Premier
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173 question is A not D
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