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Free Taraba State Civil Service Past Question And Answers

Can you ace these Taraba state Civil Service Past Questions? Start honing your skills with some past questions practice and get a preview of what you can expect on test day. We pulled these Taraba State Civil Service questions from our study pack Taraba State Civil Service Past Question And Answers study pack Each sample question […]

Can you ace these Taraba state Civil Service Past Questions? Start honing your skills with some past questions practice and get a preview of what you can expect on test day.

We pulled these Taraba State Civil Service questions from our study pack Taraba State Civil Service Past Question And Answers study pack Each sample question includes correct answers, so you can see how to crack it!

Note about the test format: On Taraba State Civil Service aptitude test, you'll face 3 test sections:

  • Mathematics,
  • English Language
  • General paper/ Current Affairs

Free Sample Taraba State Civil service Practice Questions and Answers

1.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
Benue state civil service Past questions and answersNow calculate the variance,Benue state civil service Past questions and answers


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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Free Taraba State Civil Service Past Question And Answers

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