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Most likely, the Borno civil service screening and aptitude test usually are repeated questions from the previous exam. So if you are confused about the way the Borno civil service Examination is conducted, you should read through this publication and see some of the samples we have been able to get from past Borno civil service recruitment past questions and answers.
These Free Borno civil service Past Questions and Answers contain a collection of sample past questions and answers that you can use for studying for your upcoming Borno civil service exam. We pulled this Borno civil service Past Questions and Answers from our study pack Borno State civil service Practice questions and answers
Each sample question includes correct answers, so you can see how to crack it!
Free Sample Borno civil service Past questions and answers
The arithmetic mean of all possible outcomes is known as
(A) expected value
(B) critical value
(C) variance
(D) standard deviation
Answer: A
Expectation (or expected value) is the arithmetic mean of all possible outcomes of a random variable.
2. Which of the following cannot be the value of a correlation coefficient?
(A) –1
(B) –0.75
(C) 0
(D) 1.2
Answer: D
The value of a correlation coefficient is always between –1 and 1, including –1 and 1.
3. Var (X) = ?
(A) E[X2] (B) E[X2] – E[X] (C) E[X2] + E[X]2
(D) E[X2] – E[X]2
Answer: D
By definition, Var (X) = E[X2] – E[X]2
4. Var (X + Y) = ?
(A) E[X/Y] + E[Y] (B) E[Y/X] + E[X] (C) Var(X) + Var(Y) + 2 Cov(X, Y)
(D) Var(X) + Var(Y) – 2 Cov(X, Y)
Answer: C
By definition, Var (X + Y) = Var(X) + Var(Y) + 2 Cov(X, Y)
5. What is variance of the data set: 2, 10, 1, 9, and 3?
(A) 15.5
(B) 17.5
(C) 5.5
(D) 7.5
Answer: B
First calculate the mean
Now calculate the variance,
ENGLISH
1. Tunde and Tania went shopping, but __________ couldn’t find anything __________ liked.
(A) they, those
(B) they, them
(C) those, they
(D) they, they
The answer is: (D)
2. Nuclear energy is __________ dangerous to be used widely.
(A) so
(B) such
(C) too
(D) that
The answer is: (C)
3. If I have money, I __________ it tomorrow.
(A) will purchase
(B) would purchase
(C) have purchase
(D) have purchased
The answer is: (A)
4. Cannon had __________ unique qualities _________ it was used widely in ancient times.
(A) such, that
(B) such, so
(C) that, since
(D) that, that
The answer is: (A)
GENERAL
1. The oldest news agency in the world is
(A) AFP
(B) WAFA
(C) BBC
(D) CNN
The answer is: (A)
2. AFP is a renowned news agency of which country?
(A) Switzerland
(B) France
(C) Germany
(D) Sweden
The answer is: (B)
3. How many electoral votes are required in the US presidential elections to become president of the United States?
(A) 250
(B) 270
(C) 350
(D) 370
The answer is: (B)
4. Currently, the largest economy in the world is the economy of
(A) China
(B) Russia
(C) Germany
(D) United States
The answer is: (D)
5. Which state of the United States shares marine border with Russia?
(A) Florida
(B) Hawaii
(C) Georgia
(D) Alaska
The answer is: (D)
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