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Free CFA-Level-I Exam Braindumps (page: 140)

Page 140 of 991
PDF with 3963 Questions

The lengths of time (in minutes) several underwriters took to review applications for similar insurance coverage are: 50, 230, 52 and 57. What is the median length of time required to review an application?

  1. 141.0
  2. 54.5
  3. None of these answers
  4. 109.0
  5. 97.25

Answer(s): B

Explanation:

Order the numbers: 50,52,57,230. The median is (52 + 57)/2 = 54.5



A statistician has framed his hypothesis testing problem as:
Ho: mean = 0H1: mean > 0
For the given sample, he calculates the z-statistic. Then, the region of rejection at the 99% level is given by:

  1. z-statistic > +2.32
  2. z-statistic < 1.96
  3. z-statistic < -2.32 or z-statistic > +2.32
  4. z-statistic > +1.96

Answer(s): A

Explanation:

Since the alternative is directional and to the right, we use a right-tailed test. For this, the critical value at 99% level is +2.32. +2.32 is the value above which only 1% of the probability mass of the standard normal distribution lies). The rejection region is then given by z-statistic > +2.32.



A cumulative frequency distribution on days absent during a calendar year by employees of a manufacturing company is shown below.

Days AbsentCumulative ## of Employees
0 - 260
3 - 531
6 - 814
9 - 116
12 - 142

How many employees were absent between 6 and 11 days?

  1. 12
  2. 17
  3. 20
  4. None of these answers
  5. 8

Answer(s): A

Explanation:

This is found by the difference between the 6-8 class and the 12-14 class. In this case: 14 - 2 = 12.



Which of the following is the formula for the correlation between X and Y?

  1. Cov(X,Y)/[(sigma_X)*(sigma_Y)]^2.
  2. [Cov(X,Y)]^0.5
  3. (sigma_X)*(sigma_Y)/Cov(X,Y).
  4. Cov(X,Y)/[(sigma_X)*(sigma_Y)].

Answer(s): D

Explanation:

The correlation between two random variables X and Y is Cov(X,Y)/[(sigma_X)*(sigma_Y)].



Page 140 of 991



Post your Comments and Discuss Test Prep CFA-Level-I exam with other Community members:

Lee commented on October 21, 2024
Finally a exam dump I can rely on. I went for the full PDF version and it turned out to be as advertised. I just passed first exam last Friday. Preping for the second one. Hopefully I can write and pass this one too because these exams are very difficult.
Hong Kong
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Subash commented on October 21, 2024
I am planning to take this exam. Are these 257 questions enough to clear it? Also, does each section have a passing percentage, or is it based on the overall ?
INDIA
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amrith commented on October 20, 2024
more questions on databricks as well please
Anonymous
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amrith commented on October 20, 2024
Documentation
Anonymous
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Great article! I especially appreciated the way you broke down the questions
UNITED STATES
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Some of the questions are tought. Need to practice more..
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France
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Marcellus Werifah commented on October 20, 2024
Novice. Would need detailed explanation of any questions
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