FREE Master of Data Science Research & Data Analysis Questions and Answers

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Identify the replication-related correct statement.

Correct! Wrong!

If the same data is saved on several storage devices, data replication is necessary.

The second objective of PCA is which of the following?

Correct! Wrong!

If you scale the variables first, the principal components are equal to the appropriate singular values.

Which of the following results from hierarchical clustering in the end?

Correct! Wrong!

Hierarchical clustering is a method of agglomeration.

Which of the following parameters determines the type of line, including dashed and dotted lines?

Correct! Wrong!

Line width is specified by lwd.

Which of the following is a graphic device example?

Correct! Wrong!

R passes the data necessary for the plot over when the plot() function is used, and the graphics card creates the plot.

Which of the subsequent annotation features adds or modifies text?

Correct! Wrong!

Other well-known annotation functions include points and axes.

K-means clustering requires which of the following?

Correct! Wrong!

Following the partitioning strategy is K-means clustering.

Which of the following factors made graphs necessary for data analysis?

Correct! Wrong!

Data can't always communicate a narrative as well as a picture.

Which of the subsequent combinations is wrong?

Correct! Wrong!

You should pick a distance or similarity that makes sense in relation to your issue.

Identify the incorrect statement.

Correct! Wrong!

On a Mac, you cannot use the window function.

Which of the subsequent packages does the lattice plotting system implement?

Correct! Wrong!

Grid on will show the main grid lines.

Identify the accurate statement.

Correct! Wrong!

Depending on the distance, some elements may be near together while others may be farther apart.

Identify the incorrect statement.

Correct! Wrong!

Plots are also built with a single purpose in mind.

Which of the following issues can reproducibility solve?

Correct! Wrong!

Reproducibility is about making the data analysis process transparent and repeatable, Reproducibility in the context of data analysis and research means that the results and findings of a study can be independently verified by others using the same data and methods. When data analysis is reproducible, it enables other researchers or analysts to follow the same procedures and arrive at similar or identical results, validating the original findings.

Which of the following file types is exclusive to Windows graphic devices?

Correct! Wrong!

The win.metafile can be used to export graphics to a Windows MetaFile.

What qualifies as a characteristic of an exploratory graph?

Correct! Wrong!

Exploratory graphs are created in large numbers.

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