The code chunk that lets the analyst create the phone_number column is: unite(customers, "phone_number", area_code, phone_num, sep="-"
<h3>What is a data frame?</h3>
A data frame refers to a two-dimensional array-like structure or table that is made up of rows and columns, which is typically used for storing data in R Studio using the R programming language.
In Computer programming, a data frame is a list of vectors that are all equal in length, and each column consist of values of one variable while each row consist of a set of values from each column.
<h3>The executable code in R Studio.</h3>
In this scenario, the code chunk that would be used to create a data frame that combines the two columns into a single column (phone_number) is:
- unite(customers, "phone_number", area_code, phone_num, sep="-"
Read more on data frame here: brainly.com/question/25558534
Answer:
Explanation:
we feed wild birds in the winter- topic sentence= first sentence of paragraph
The price of the new vehicle without tax is $5,876.06
The correct answer to this open question is the following.
Decide whether the elements of a typical conclusion paragraph are in the correct order.
So this is the correct order.
1.- summary of the main thesis.
2.- restatement thesis.
3.- satisfying close.
This is the explanation. When you are writing a conclusion, you have to be precise, summarize the main ideas of the document, not adding something new or different, restate the thesis, and give direct-to-the-point closing ideas so the reader can get the main purpose of the document clear.
Writing a good conclusion is very important because it represents the last idea that you want to convey to your readers and formally ends your essay.
The correct answer to public libraries response to to patrons’ increasing desire for e-books is; made a proactive change
<h3>What are proactive changes?</h3>
From the question we see that the public libraries have observed that patrons were now liking e-books more than print books. Thus, they are seeking to use technology to allow people to check out books on their mobile devices.
Now, this attitude of public libraries to allow patrons check out books on their mobile device is called being proactive. Thus, we can say that they made a proactive change by making changes in advance to suit the priorities of the users.
Read more about changes at; brainly.com/question/2147899
