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Zinaida [17]
4 years ago
11

You are going to write a program for Computer test which will read 10 multiple choice questions from a file, order them randomly

and provide the test to the user. When the user done the program must give the user his final score

Computers and Technology
1 answer:
sweet-ann [11.9K]4 years ago
6 0

Answer:

Code is too large , i attached a source file below and also a text file from where i get Questions

Explanation:

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Why was the first computer developed? a.) for personal use, b.) for military purposes, c.) for transportation, d.) for communica
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B) For Military Purposes but around the 1970s they became widely available to consumers.
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3 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 )

6 0
3 years ago
Which of the given original work is protected by the copyright law
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BMW is my desion u cant copy write alot of things like books movies logos
7 0
4 years ago
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Nolan has just created a linked cell to another cell in a separate worksheet in his current Excel 2016 workbook.
kipiarov [429]

Answer: dependent

Explanation:

A Cells containing formulas which refer to other cells are known as dependents.

These are cells that depend on values in the selected cell.

A dependents cell can either contain a formula or a constant value.

(Ctrl + ] ) Is used as a shortcut when selecting dependents cells in an active cell.

Another option is to make use of you (Tools > Formula Auditing > Trace Precedents).

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3 years ago
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Describe the tools that are required to accomplish each step in the data management process.
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Answer: The tools which are required to accomplish each step in the data management process are:

1. Cloud Data Management tools.

2. Master Data Management (MDM) tools.

3. Reference Data Management (RDM) tools.

4. ETL tools.

5. Data visualization and  analytics tools

Explanation:

Cloud Data Management tools with the help of various API's are able to connect multiples system with their data to the cloud. examples are amazon cloud, google API cloud.

MDM tools are used for creation and maintenance of reference data. example are Profisee

RDM tools is used with the MDM tools and are use to define the businesss processes over the reference data. Examples are Collibra.

ETL tools helps to load data of an organisation to data warehouses after transformation and testing the data pipeline constituting the data from different databases.

Data visualization  analytics tools helps to extract and generate report from the big sets of data which can help an organisation to take business decisions.

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