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Molodets [167]
4 years ago
7

A ________ is s field or set of fields in a record that uniquely defines the record.

Computers and Technology
1 answer:
Archy [21]4 years ago
5 0
A primary key is the answer. =)
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​When preparing a representative sample from a list of 200 customers who complained about errors in their statements, a _____ co
svetoff [14.1K]

Answer: Stratified sample

Explanation:

For preparing samples of various data of companies and enterprises we need to apply probability distribution to different samples of data. Here in the question we are to apply a representative sample from a list of 200 customers who have complained about errors in their statement. So here we can apply stratified sampling where we can divide the 200 customers into separate groups. These sub groups of the customers are known as stratas. These stratas are selected based on certain characteristics which can be identified among the customers group. Here we can form subgroups based on the type of complain that has been lodged by the customer and selecting 5 customers from four zip codes. Then it would be easy to apply probability distribution to the sub groups to derive information from them.

This process would also enable a more easier and cheaper way of sampling the customer data.

7 0
4 years ago
The merge and center
elena-s [515]

Answer:

True

Explanation:

Merge & Center is a feature in excel that combines multiple cells and centers the contents of the first cell. You can merge columns and rows too.

8 0
3 years ago
All of the following are methods of communication
NNADVOKAT [17]

Answer:

Extremal hard drive is not form of communication.

3 0
4 years ago
Read 2 more answers
Question 1 Fill in the blank: Internet search engines are an everyday example of how Boolean operators are used. The Boolean ope
nikdorinn [45]

The Boolean operator OR expands the number of results when used in a keyword search. Thus, the correct option is D.

<h3>What is the Boolean operator?</h3>

The Boolean operator may be defined as an important tool that is utilized in the programming languages for the junctions to integrate or exclude keywords in a search, resulting in more attention and generative outcomes.

The Boolean operators are major of three types with specific functions and properties. They are:

  • AND
  • NOT
  • OR

Therefore, the Boolean operator OR expands the number of results when used in a keyword search. Thus, the correct option is D.

To learn more about Boolean operators, refer to the link:

brainly.com/question/1675220

#SPJ1

4 0
2 years ago
When I click on someone who asked a question and i want to see there answer it is always blurred and when I asked a question I c
yuradex [85]

Answer:

If your on pc like me use ad blocker I do that but otherwise watch the add press ok after if it dosemt work tell me I’ll try and find you it and for ad blocker you also can have a jailbreak divice and to get and blocker go to chrome extension website search up pop up ad blocker

Explanation:

7 0
3 years ago
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