최신 DA0-001 무료덤프 - CompTIA Data+ Certification

문제1

Andy is a pricing analyst for a retailer. Using a hypothesis test, he wants to assess whether people who receive electronic coupons spend more on average.
What should Andy's null hypothesis be?

A. People who do not receive electronic coupons spend more on average.

B. People who receive electronic coupons do not spend more on average.

C. People who receive electronic coupons spend more on average.

D. People who receive electronic coupons spend less on average.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제2

Which of the following are reasons to conduct data cleansing? (Select two).

A. To calculate trends

B. To track KPls

C. To review data sets

D. To perform web scraping

E. To improve accuracy

F. To increase the sample size

정답: A,E

설명: (DumpTOP 회원만 볼 수 있음)

문제3

Which of the following types of analyses should be used to evaluate the connections and anomalies in a data set when either known patterns are being violated or new patterns are emerging?

A. Regression

B. Correlation

C. Graph

D. Descriptive

정답: C

문제4

Given the table below:

Which of the following variable types BEST describes the "Year" column?

A. Alphanumeric

B. Numeric

C. Text

D. Date

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제5

Which of the following file formats is best suited to start exploratory analysis within statistical software?

A. CSV

B. JSON

C. XLSM

D. XML

정답: A

문제6

A company's human resources department has asked a data analyst to categorize the income of all employees into five salary bands:

Which of the following types of functions would be the most appropriate to use?

A. Logical

B. Aggregate

C. Mathematical

D. Statistical

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제7

Which of the following statements would be used to append two tables that have the same number of columns?

A. UNION ALL

B. MERGE

C. GROUP BY

D. JOIN

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제8

Which of the following statistical methods requires two or more categorical variables?

A. Chi-squared test

B. Simple linear regression

C. Two-sample t-test

D. Z-test

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제9

Which of the following reports can be used when insight into operational performance is needed each Wednesday?

A. Ad hoc report

B. Static report

C. Tactical report

D. Recurring report

정답: D

문제10

A sales director has requested a report for individual team members within the division be developed. The director would like the report to be shared with all team members, but individual team members should not be identifiable within the report Which of the following access requirements would support the director's needs?

A. Provide the report based on role and include data encryption.

B. Get a data use agreement from the individual team members.

C. Release the report as user-group-based access and include data masking.

D. Create an acceptable use policy for the sales data.

정답: C

문제11

Which of the following is an example of structured data?

A. An email

B. A photo

C. A credit card number

D. Social media correspondence

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제12

An analyst reviews the following data:
7
3
5
2
3
7
7
10
Which of the following is the value of the mode?

A. 7

B. 3

C. 5

D. 10

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

최신 DA0-001 무료덤프 - CompTIA Data+ Certification

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