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
President Reagan’s new approach to the Cold War reveal about his foreign-policy strategy is:
- <u>C. He wanted to work for peace from a position of military strength. </u>
<u />
The Cold War was a period in history between the United States and Russia (then known as the Soviet Union) where there were conflicts which led to trade embargoes, diplomatic issues and threats of war.
The two leaders of America and the Soviet Union respectively, President Reagan and Comrade Gorbachev were engaged in war of words and President Reagan tried to make peace and evoid conflict, even though the United States were stronger from a military perspective
Therefore, the correct answer is option C
Read more here:
brainly.com/question/3571607
It was Adam and the second was Eve
The product of expressions or numbers is calculated by multiplying the expressions or numbers.
- The incorrect value in the table is
- The value that should have been written is
From the table (see attachment), the incorrect product is given as:
The above product is incorrect.
This is so because when -y is multiplied by 2x, the result is
So, the correct expression is:
Read more about products at:
brainly.com/question/4344214
