Data Analytics MCQs (Chapterwise Multiple Choice Questions)

The bag-of-words model is used in which of the following text mining processes?

Features selection

Text preprocessing

Features generation

Both a and b

Answer & Explanation

Correct Answer: Features generation

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With respect to advanced statistics, which of the following options is correct about the arimaO function?

It can be used to produce an unrotated principal component analysis.

It can be used to produce maximum likelihood factor analysis.

It can be used to bootstrap the structural equation model.

It can be used to f‌it an autoregressive integrated moving average model.

Answer & Explanation

Correct Answer: It can be used to f‌it an autoregressive integrated moving average model.

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Which of the following is the correct syntax of the PredictSupport (DMX) prediction function used with Microsoft linear regression algorithm?

PredictSupport(, [])

PredictSupport( l )

PredictSupport( I )

PredictSupport( l )

Answer & Explanation

Correct Answer: PredictSupport(, [])

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Which of the following is the correct syntax of the lsDescendant (DMX) prediction function used in data mining?

lsDescendant()

lsDescendant(, [])

lsDescendant()

lsDescendant(, [))

Answer & Explanation

Correct Answer: lsDescendant()

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Which of the following statements is correct about the judgement sampling method?

There is no possibility of personal prejudice in this method.

It is more accurate and reliable.

It is mostly used in those fields where almost similar units exist or some units are tOO important' to be left out of the sample.

It is very expensive.

Answer & Explanation

Correct Answer: It is mostly used in those fields where almost similar units exist or some units are tOO important' to be left out of the sample.

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IN SOL Server data mining, which of the following algorithm types predicts one or more discrete variables that are based on other attributes in a dataset?

Segmentation algorithm

Classif‌ication algorithm

Sequence analysis algorithm

Association algorithm

Answer & Explanation

Correct Answer: Classif‌ication algorithm

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Which of the following is the correct default value of the MAXIMUM_ITEMSET_SIZE parameter, which is used with the Microsoft association rules algorithm?

10

3

1

0.4

Answer & Explanation

Correct Answer: 3

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Which of the following is the correct default value of the HOLDOUT_PERCENTAGE parameter of the Microsoft logistic regression algorithm, which is used for specifying the percentage of cases within the training data used to calculate a holdout error?

200

30

255

100

Answer & Explanation

Correct Answer: 30

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Which of the following functions is used to decompose a time series with additive trend, and seasonal and irregular components?

stl0

tsO

etsO

arimao

Answer & Explanation

Correct Answer: stl0

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It is given that a and b are two independent binomial variables having parameters 3,114 and 2,1/4, respectively. Find P (a + b 21).

1/1024

1023/1024

11512

511/512

Answer & Explanation

Correct Answer: 1023/1024

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Data Analytics Quick Quiz

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Start Practicing with our MCQs given below.