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ITIL ASSESSMENT

LINUX

Q.1 __ contains all the elements of a dataset.

       A. Population

       B. Sample

       C. Event

       D. None of the options

Ans : Population

Q.2 Descriptive Statistics works on __ dataset.

       A. Sample

       B. Population

       C. Both the options

Ans : Sample

Q.3 __ is an art of learning data.

       A. Statistics

       B. Probability

       C. Both the options

       D. None of the options

Ans : Statistics

Q.4 The probability of committing a Type 1 error is called __.

       A. Significance Level

       B. Power of Test

       C. None of the options

       D. All the options

Ans : Significance Level

Q.5 __ provides the summary statistics of data.

       A. Descriptive Statistics

       B. Inferential Statistics

Ans : Descriptive Statistics

Q.6 In __ test, the region of rejection is only on one side of the sampling distribution.

       A. Two-tailed

       B. One-tailed

Ans : One-tailed

Q.7 __ is calculated by multiplying each of the possible outcomes in the sample space with the likelihood of their occurrence, and then summing up all the values.

       A. Standard Deviation

       B. Expected Value

       C. Variance

       D. None of the options

Ans : Expected Value

Q.8 Any event containing two or more elements of the sample space is known as a ___.

       A. Compound Event

       B. Simple Event

       C. Mutually Exclusive Event

       D. Dependent Event

Ans : Mutually Exclusive Event

Q.9 __ helps to make inferences about a population.

       A. Descriptive Statistics

       B. Inferential Statistics

       C. All the options

       D. None of the options

Ans : Inferential Statistics

Q.10 A __ random variable takes infinite number of values.

       A. Continuous

       B. Discrete

       C. All the options

       D. None of the options

Ans : Continuous

Q.11 Null Hypothesis must be rejected if P-Value is __ than Significance Level.

       A. Lesser

       B. Greater

Ans : Lesser

Q.12 Null Hypothesis and Alternative Hypothesis must be __.

       A. Mutually exclusive

       B. Non-mutually exclusive

Ans : Mutually exclusive

Q.13 P-Value measures the strength of evidence in support of a null hypothesis.

       A. True

       B. False

Ans : True

Q.14 The __ states that no significant difference exists between a set of variables.

       A. Alternative Hypothesis

       B. Null Hypothesis

       C. None of the options

       D. All the options

Ans : Null Hypothesis

Q.15 __ enable to observe data dispersion from a central point.

       A. Mean and Median

       B. Range, Standard Deviation, and Variance

       C. Range and Median

       D. Mean, Median, and Mode

Ans : Range, Standard Deviation, and Variance

Q.16 F Distribution and T Distribution are examples of __.

       A. Continuous Distribution

       B. Discrete Distribution

       C. All the options

       D. None of the options

Ans : Continuous Distribution

Q.17 The letter e in a Poisson experiment denotes __.

       A. The mean number of successes that occur in a specified region

       B. A constant whose value is approximately 2.71828

       C. The actual number of successes that occur in a specified region

       D. All the options

Ans : A constant whose value is approximately 2.71828

Q.18 Discrete Distribution includes __.

       A. Binomial and Chi-Square

       B. Poisson and Normal Distribution

       C. Binomial and Poisson

       D. None of the options

Ans : Binomial and Poisson

Q.19 The probability of an event ( B ), given that another ( A ) has already occurred is denoted by __.

       A. P(A AND B)

       B. P(A|B)

       C. P(A OR B)

       D. P(B|A)

Ans : P(A AND B)

Q.20 Formal procedures used by statisticians to accept or reject hypotheses is called __.

       A. Statistical Hypothesis

       B. Hypothesis Testing

       C. None of the options

Ans : Hypothesis Testing




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