Answer: B and C
Explanation: Analyze the audience
Identify the problem
A list is an R-object that can have a wide range of different items inside of it, including vectors, functions, and even another list.
The head() function lets you display the first observations in a data frame. The method tail() prints the final observations in your data collection in a manner similar to that. Both head() and tail() print a top line called the 'header', which contains the names of the distinct variables in your data collection. The R language's transform() function is used to alter data. The first parameter is transformed into a data frame. A suitable variable name comprises of letters, numbers and the dot or underline characters. The variable name does not begin with a number but rather with a letter or a dot.
Learn more about variable here-
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Shutter speed<span> is </span>generally measured<span> by the scientific symbol “s”. The </span>measurement means<span> that the </span>measurements<span> in "s" is the reciprocal of the number when the denominator is put on the numerator side instead. ... Aperture is </span>measured<span> by f's.</span>
i agree... its a interesting thing to learn, just like learning an actual new language.
