Answer:
Buyers can source products from anywhere in the world.
Your purchases are delivered to the location you specify.
Explanation:
E-commerce refers to the process of buying and selling goods and services through the internet or the virtual world. The economic and business transaction done through this process constitutes electronic commerce or e-commerce.
Two advantages for buyers are that the <u>buyer can source the goods and products from all over the world and also get them delivered at the location specified</u>. This allows for an easy and effortless transaction and also saves the buyer's time and energy. With things available at just a touch of an electronic screen, the buyer can get products from anywhere and get them delivered at his/ her doorstep or for that matter, anywhere he/she wished it delivered, with no extra effort from his side.
Thus, the correct answers are the third and fourth options.
Answer:
A. It contains the string "f1"
Complete Question:
What is a method?
A. An object instantiated from a class
B. An elegant and efficient way of programming
C. A coordinated sequence of instructions that will be carried out when requested
D. Using Alice control structures such as a a "Loop" to shorten code
Answer:
C. A coordinated sequence of instructions that will be carried out when requested
Explanation:
A method also known as function or procedure in other languages is a written set of code with a name and parameter list that can be requested/ called/invoked by typing out its name to carryout its function. A method can be seen as a subprogram which carries out some action on data and most times gives back (returns) a value.
Answer:
- import statistics
- def st_dev(file_name):
- with open(file_name) as file:
- data = file.readlines()
- numList = []
- for x in data:
- numList.append(int(x))
-
- return statistics.pstdev(numList)
- print(st_dev("text1.txt"))
Explanation:
The solution code is written using Python.
To ease the calculation task, we can import Python statistics module to use the pstdev method to calculate the population standard deviation of a list of numbers (Line 1).
Next, create a st_dev function that take single argument file_name (Line 3). In the function, it will open the input file and read the data line by line (Line 4-5). Create a for loop to traverse through each line of the data which is an integer and append it to numList (Line 7-8). We can pass the numList to pstdev method (Line 10) and return the resulting standard deviation value as output.
We test the function by passing a file which hold a list of integer values in each line (Line 12).
8
9
12
11
21
15
16
10
7
13
And the output we shall get is 4.019950248448356
