Free DA0-001 Exam braindumps download (DA0-001 exam dumps Free)

QUESTION: 86

Which of the following is a difference between a primary key and a unique key?

A unique key cannot take null values, whereas a primary key can take null values.
There can be only one primary key in a data set, whereas there can be multiple unique keys.
A primary key can take a value more than once, whereas a unique key cannot take a value more than once.
A primary key cannot be a date variable, whereas a unique key can be.

Answer(s): B

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QUESTION: 87

Which of the following best describes how discrete data differs from continuous data?

Discrete data cannot create a sloped line.
Discrete data can only be a finite number of values.
Discrete data can have decimal points.
Discrete data applies only to numbers.

Answer(s): B

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QUESTION: 88

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

CSV
XLSM
XML
JSON

Answer(s): A

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An analyst wants to model the relationship between a set of continuous variables in order to predict the value of an output variable based on the values of a set of input variables.

Which of the following types of analyses should the analyst use?

Chi-squared
Correlation
Regression
t-test

Answer(s): C

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QUESTION: 90

A data analyst needs to create a dashboard using the company’s yearly revenue data sets.

Which of the following would be the best way to plot the information to show the top performing region?

A line chart
A waterfall chart
A heat map
A stacked bar chart

Answer(s): D

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Free DA0-001 Exam Braindumps
Data+ Questions 86–90 (page: 19)

QUESTION: 86

QUESTION: 87

QUESTION: 88

QUESTION: 89

QUESTION: 90

Free DA0-001 Exam Braindumps Data+ Questions 86–90 (page: 19)

QUESTION: 86

QUESTION: 87

QUESTION: 88

QUESTION: 89

QUESTION: 90

Free DA0-001 Exam Braindumps
Data+ Questions 86–90 (page: 19)