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 )
The office is a good one. If you haven’t ever watched it
Answer: A
Explain:
you can use memory on a computer to retrieve passed data if your referring to brains memory that is memory of passed events
memory:1 the faculity by which the mind stores and members information
2 something remembered from the past a recollection
The answer is a. im pretty positive but if im wrong super sorry
Answer:
OC
Explanation:
I am not so sure about this though as I am not familiar with a webmail service. I hope this helped. Sorry, if it wasn't much of an help though
