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vladimir2022 [97]
2 years ago
10

The Department of Homeland Security wants to test a computer virus that it has developed to combat hackers. They plan to test ru

n the virus on randomly selected computers with pre-set "hacker" programs.
choose one:

-census

-cluster sampling

-convenience sampling

-simple random sampling

-stratified sampling



choose one:

-experiment

-observational study

-simulation

-survey
Mathematics
1 answer:
ra1l [238]2 years ago
8 0

Answer:

Simple random sampling  

Observational study

Step-by-step explanation:

Since in the given situation it is mentioned that department wants to test the computer virus and have to run the virus on the random selected computers so here the simple random sampling would be done and based on the simple random sampling the observational study would be done

Therefore the above represent the answer

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Step-by-step explanation:

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Amma hikes 2and3/4 miles of nature trail in 1 hour and 15 minutes. How many miles does Amman hike per hour?
LekaFEV [45]
Formula
====
d = r * t

Givens
======
d = 2 3/4
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Calculations
==========
You need to convert the 15 minutes to hours.
1 hour = 60 minutes
x hour = 15 minutes

1/60 = x/15
x = 15/60
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Now you need to do something with the distance.
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Now you are ready for the answer.
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Note you could do this with fractions.
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r = 11/4 // 5/4 =11/5 = 2 1/5 which is the same thing as 2.2. If your calculator can handle fractions (those kind of calculators cost about 10 dollars in Canada. It should be 8 in the US) that might be the way to do this problem.
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Answer:

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