Data Science Miscellaneous - Study Mode

[#126] The document produced by knitr document has which of the following extension?
Correct Answer

(B) .rmd

[#127] Which of the following way is required to make work reproducible?
Correct Answer

(A) keep track of things

[#128] For continuous random variables, the CDF is the derivative of the PDF.
Correct Answer

(B) False

[#129] The expected value or . . . . . . . . of a random variable is the center of its distribution.
Correct Answer

(C) mean

[#130] Which of the following system most often don't have postscript viewer?
Correct Answer

(A) Windows