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CompTIA Updated DY0-001 Exam Questions and Answers by milena

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CompTIA DY0-001 Exam Overview :

Exam Name: CompTIA DataX Exam
Exam Code: DY0-001 Dumps
Vendor: CompTIA Certification: CompTIA Data+
Questions: 85 Q&A's Shared By: milena
Question 16

The term "greedy algorithms" refers to machine-learning algorithms that:

Options:

A.

update priors as more data is seen.

B.

examine every node of a tree before making a decision.

C.

apply a theoretical model to the distribution of the data.

D.

make the locally optimal decision.

Discussion
Question 17

Which of the following best describes the minimization of the residual term in a ridge linear regression?

Options:

A.

|e|

B.

e

C.

D.

0

Discussion
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Question 18

Given the equation:

Questions 18

Xt = δ + ϕ1Xt−1 + ωt, where ωt ∼ N(0, σω²)

Which of the following time series models best represents this process?

Options:

A.

ARIMA(1,1,1)

B.

ARMA(1,1)

C.

SARIMA(1,1,1) × (1,1,1)1

D.

AR(1)

Discussion
Question 19

A data scientist observes findings that indicate that as electrical grids in a country become more and more connected over time, the frequency of brownouts and blackouts in total decrease, and the frequency of major brownouts and blackouts increase. Which of the following distribution metrics could best be identified?

Options:

A.

Scale axis magnitudes

B.

Kurtosis

C.

Skewness

D.

Normality

Discussion
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