Networks in small areas are called Local Area Network (LAN). LAN's are in small areas like offices and buildings. Computers close to each other can make up a LAN network with the right equipments. A LAN network is good for doing business.
Answer:
File manager
Explanation:
From the list of options 1 to 4, only option (2) is correct
Explaining the options one after the other
- Web browser: It lets users access the internet
- File Manager: Used to create and manage files/folders
- User Interface: Means which the user of a computer interacts with the computer
- File Reader: Used to read the content of a file. e.g. Adobe reader for pdf files, Notepad for text files, etc.
Having explained the options one after the other, <em>the file manager </em>is the answer to this question.
You got to "insert" and then you go to "shapes" and then you find the symbol you like and you drag and drop it onto the page. Then you can resize to the size and angle you would like it at.
Answer:
computer-assisted self-interviewing
Explanation:
Based on the description of the interviewing method that is being provided, it can be said that this method is known as computer-assisted self-interviewing. Like mentioned in the question this is when interviewees answer the interview questions through a computer screen. This is similar to telephone interviews but it is instead through a computer.
Answer:
The correct Answer is 0.0571
Explanation:
53% of U.S. households have a PCs.
So, P(Having personal computer) = p = 0.53
Sample size(n) = 250
np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10
So, we can just estimate binomial distribution to normal distribution
Mean of proportion(p) = 0.53
Standard error of proportion(SE) = 
= 
= 0.0316
For x = 120, sample proportion(p) = 
= 
= 0.48
So, likelihood that fewer than 120 have a PC
= P(x < 120)
= P( p^ < 0.48 )
= P(z < 
) (z=
)
= P(z < -1.58)
= 0.0571 ( From normal table )
