<span>When studying an information system, illustrations of actual documents should be collected using a process called sampling. Correct answer: D
</span>This process systematically selects representative elements of a population with the goal to get representative and useful information about the population as a whole and it is useful when <span>data sets that are too large to efficiently analyze in full.</span>
Answer:
A pre-programmed function is a section of code which is reusable to perform certain routine. One benefit of using a pre-programmed function to analyze data is the code redundancy can be reduced. The function is only written for once and it can be called to perform a specific data analysis whenever it is needed.
Besides, a pre-programmed function also offer consistent analytical output as all data are processed by a same analytical procedure in the function.
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.
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The correct option is B.
Chart area is the boundary that contains all the chart and all its elements including the chart titles, legends, plot area, labels, etc.
The legend is the key that identifies the gradient, texture, colour and pattern fill given to each data series.
The chart title is the label that describe the chart while the plot area is the section of the chart that contains graphical representation of the values in a data series.
Answer:
B. Use the auto-summary command.
Explanation:
With the implementation of dynamic routing protocols, RIP summarizes networks at classful boundaries by default. To configure a router to automatically summarize networks, the auto-summary command would be used.