Answer:
char
Explanation:
The character data type written as char holds any single character, numbers and non-printing characters. In java and most programming languages, the value of the character must be placed within single quotes. for example
char c = 'd'
char c = '9'
char c = '\t'
Are all valid declarations of a variable c as char and assigned d, then 9 and then used with a non-printing character (tab ) with the escape sequence.
Answer:
Data Type: Double (decimal)
Variable Name: avg
Explanation:
An average of numbers will typically give you a decimal answer. Therefore, you should use the Double data type.
Answer:The most easiest way to drop columns is by using subset() function.
Explanation:
In the code below, we are telling R to drop variables x and z. The '-' sign indicates dropping variables. Make sure the variable names would NOT be specified in quotes when using subset() function.
Your answer should be expansion boards
