Data Science Miscellaneous - Study Mode

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[#221] Statistical inference is the process of drawing formal conclusions from data.

(A) True

(B) False

Correct Answer

(A) True

[#222] Which of the following will copy the plot from one device to another?

(A) dev.copy

(B) dev.copypdf

(C) dev.device

(D) all of the mentioned

Correct Answer

(A) dev.copy

[#223] Which of the following clustering type has characteristic shown in the below figure?

(A) Partitional

(B) Hierarchical

(C) Naive bayes

(D) None of the mentioned

Correct Answer

(B) Hierarchical

[#224] Which of the following outcome is odd man out in the below figure?

(A) R Squared

(B) Kappa

(C) RMSE

(D) All of the mentioned

Correct Answer

(B) Kappa

[#225] Which statistical test is commonly used to determine if there is a significant difference between the means of two groups?

(A) Chi-squared test

(B) ANOVA

(C) t-test

(D) Regression analysis

Correct Answer

(C) t-test