Answer:
The code for the function is given below in Python language
Explanation:
def append_string_to_file(filename, text):// function takes the filename // and text to append
f = open(filename, 'a')
f.write(text) //function part that writes the text
f.close() //closing the file using the explicit close function
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:
All the three statements given are true so the correct option is option 4 which is none of the above.
Explanation:
The options are given in a jumbled up form the options are sorted which are as follows:
- SOA eliminates the use of application boundaries, the traditional methods where security is at the application level aren't likely to be effective
- An atomic service cannot be decomposed into smaller services that provide a useful function
- XML security service may be found in retail application communication.
- None of the mentioned
SOA stands for Service Oriented Architecture. This eliminates the application boundaries so option 1 is true.
An atomic service is defined as the smallest service which cannot be divided further. So this is true as well
The XML security service is incorporated in all retail applications. so this is true as well.
So the remaining option is just None of the mentioned.
