Statistics And Data Analysis Questions Practice Question and Answer

Q:

A file that uses preset settings for a normal presentation station (presentation/document) is done in the making is called ______?

502 0

  • 1
    Pattern
    Correct
    Wrong
  • 2
    Model
    Correct
    Wrong
  • 3
    Template
    Correct
    Wrong
  • 4
    Blueprint
    Correct
    Wrong
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Answer : 3. "Template"
Explanation :

1. A file that contains a template for a simple presentation using predefined settings.

- Presentation: Using the template, you can create a professional presentation that will grab attention and impress your audience.

- Document: Using templates, you can create a professional document that is well-written and well-organized.

- Email: Using the template, you can create a professional email that will attract attention and get your response.

- Web page: Using the template, you can create a professional web page that is beautiful and easy to use.

Q:

Flash memory is?

406 0

  • 1
    software
    Correct
    Wrong
  • 2
    Operating System
    Correct
    Wrong
  • 3
    RAM
    Correct
    Wrong
  • 4
    Portable storage device
    Correct
    Wrong
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Answer : 4. "Portable storage device"
Explanation :

. Flash memory is a portable storage device that can store data for a short period of time.

2. Unlike traditional hard drives, flash memory is capable of retaining data even after the power is turned off.

3. A flash drive is a small, portable flash memory card that plugs into a computer's USB port and acts as a portable hard drive.

4. A flash drive is a portable data storage device. Flash drives contain multiple flash chips, which are large memory modules.

Q:

Which of these computers is the most powerful in data storage capacity, performance and data processing?

387 0

  • 1
    Micro computer
    Correct
    Wrong
  • 2
    super computer
    Correct
    Wrong
  • 3
    Palmtop computer
    Correct
    Wrong
  • 4
    Mainframe computer
    Correct
    Wrong
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Answer : 2. "super computer"
Explanation :

1. Supercomputer is a powerful computer in terms of data storage capacity, performance and data processing.

2. A supercomputer is a powerful computer that can process large amounts of data and computations very quickly.

3. Supercomputers perform copious amounts of mathematical calculations.

4. Supercomputers are used for a wide variety of applications, including meteorology, medical research, and nuclear weapons research.

Q:

What is the mode of the given data?

5, 7, 9, 7, 3, 7, 5, 7, 8, 6, 7

369 0

  • 1
    7
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 1. "7"

Q:

The median of a set of 11 distinct observations is 73.2. If each of the largest five observations of the set is increased by 3, then the median of the new set:

572 0

  • 1
    is 3 times that of the original set
    Correct
    Wrong
  • 2
    is increased by 3
    Correct
    Wrong
  • 3
    remains the same as that of the original set
    Correct
    Wrong
  • 4
    is decreased by 3
    Correct
    Wrong
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Answer : 3. "remains the same as that of the original set"

Q:

Find the standard deviation of the following data (rounded off to two decimal places). 5, 3, 4, 7 

472 0

  • 1
    1.48
    Correct
    Wrong
  • 2
    3.21
    Correct
    Wrong
  • 3
    4.12
    Correct
    Wrong
  • 4
    2.45
    Correct
    Wrong
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Answer : 1. "1.48 "

Q:

The median of the following data will be _________. 

32, 25,33,27, 35, 29 and 30 

535 0

  • 1
    32
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    29
    Correct
    Wrong
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Answer : 3. "30"

Q:

Find the standard deviation of the following data (rounded off to two decimal places). 

5, 3, 4, 7 

601 0

  • 1
    1.48
    Correct
    Wrong
  • 2
    3.21
    Correct
    Wrong
  • 3
    4.12
    Correct
    Wrong
  • 4
    2.45
    Correct
    Wrong
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Answer : 1. "1.48 "

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