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3 years ago

14

What type of software controls the hardware of a computer? Desktop publishing software Spreadsheet applications Groupware applic

ations Operating system applications

Computers and Technology

1 answer:

Hatshy [7]3 years ago

4 0

It's most likely the Operating System Applications

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Some commands listed in a menu cannot be selected.<br><br><br> True or False

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True! Have a nice week

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2 years ago

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What is the difference between a network intrusion detection system (NIDS) and a network intrusion prevention system (NIPS)?

alisha [4.7K]

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Detection vs Prevention

Explanation:

A Network Intrusion Detection System as the name suggests it "detects" the attackers / vulnerabilities existed in the network system / infrastructure.
A Network Intrusion Prevention Detection System as the name suggests it "prevents" the attackers from hacking the system. While a detection just detects the abnormalities where as a prevention system can prevent them.
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2 years ago

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checkWin();

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2 years ago

Fifty-three percent of U.S households have a personal computer. In a random sample of 250 households, what is the probability th

aleksley [76]

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) = $\sqrt{\frac{p(1-p)}{n} }$ = $\sqrt{\frac{0.53(1-0.53)}{250} }$ = 0.0316

For x = 120, sample proportion(p) = $\frac{x}{n}$ = $\frac{120}{250}$ = 0.48

So, likelihood that fewer than 120 have a PC

= P(x < 120)

= P( p^ < 0.48 )

= P(z < $\frac{0.48-0.53}{0.0316}$ ) (z= $\frac{p^-p}{SE}$ )

= P(z < -1.58)

= 0.0571 ( From normal table )

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2 years ago