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:
The field of information technology, or IT, covers the support, administration, and design of telecommunications and computer systems. Some positions in this field include system analysts, software programmers, computer scientists, computer support specialists, and network and database administrators.
Explanation:
AutoComplete automatically fills a cell entry. The correct answer is A.
Find the area of both triangles with 1/2•base•height then add them together
The mobile network capacity can be improved by increasing the radio spectra or also increasing the re-utilization of a given spectrum.
<h3>What is mobile network capacity?</h3>
The mobile network capacity refers to the final volume of information (data) that can be transferred to a particular customer.
A mobile wireless system refers to a given network where the connection to and from customers consists of wireless technology.
The mobile network capacity is usually improved in a given area by increasing the radio spectra or increasing the re-utilization of the spectrum.
Learn more about mobile wireless systems here:
brainly.com/question/1763761
