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 )
Answer: There are many different types of user interfaces. To decide on the user interface depends entirely on the requirement of the client.
Explanation:
There are different types of interfaces such as command line user interface, graphical user interface, menu based, form based. Therefore to choose among them it depend on the requirement specified by a client. Mostly nowadays GUI is used. to maintain records form based is preferred. For system software CUI is better due to decrease its pressure on the processor. Networking is also both GUI and CUI. So it depend mainly on the type of application developed , client requirements, power consumption based on its dependence on processor power.
Answer:
crawler
Explanation:
A crawler (also known as spider or robot) is a component of search engine that indexes web sites automatically. It's main purpose is to systematically browses the World Wide Web, typically for the purpose of Web indexing.
It does this by visiting a list of linkss, as it does this it identifies all the hyperlinks found in the web pages and copies and saves them to the list of links to visit.
Answer: It's similiar to the quote "You bring out the best of me" When you're in love, you feel the need to be yourself and that you don't have to hide it. Love brings out the real you.
Hope this helps.
Explanation:
