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Agriculture informatics > Lecture 4 > Flashcards

Lecture 4 Flashcards

1
Q

What is statistical analysis?

A

A component of data analytics that involves collecting and analyzing data samples from a population.

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2
Q

What is a data sample?

A

A representative selection drawn from a total population.

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3
Q

What is the importance of statistical analysis?

A

It supports hypotheses, provides credibility to research, and helps analyze and infer conclusions from data.

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4
Q

What is data analysis?

A

The process of applying statistical and logical techniques to describe, summarize, and evaluate data.

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5
Q

What is the objective of data analysis?

A

To ensure data integrity through accurate and appropriate analysis.

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6
Q

What is classification of data?

A

An ordered set of categories used to group data based on similarities.

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7
Q

What is the purpose of data classification?

A

To organize data into meaningful categories for better analysis and decision-making.

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8
Q

What are mathematical expressions?

A

Combinations of symbols and operations (e.g., addition, subtraction) that represent numbers or abstract concepts.

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9
Q

What is Microsoft PowerPoint?

A

A presentation program developed by Microsoft.

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10
Q

What is the file extension of PowerPoint?

A

.ppt or .pptx.

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11
Q

What is Microsoft PowerPoint used for?

A

To create slideshows for business, education, and informal purposes with text, images, audio, and video.

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12
Q

What are the features of MS PowerPoint?

A

Easy design, animations, presentation tools, integration with MS Office, and multimedia support.

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13
Q

What is slide transition in PowerPoint?

A

An effect added when switching between slides during a presentation.

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14
Q

What is element animation in PowerPoint?

A

Adds movement or sounds to objects within a slide.

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15
Q

What is the presentation feature in PowerPoint?

A

Includes presenter notes, pre-recorded narration, and rehearsal tools for public speaking.

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16
Q

What is PowerPoint integration?

A

Compatibility with MS Office tools and support for embedding videos, images, and exporting slides for online collaboration.

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17
Q

What are the disadvantages of PowerPoint?

A

Distracting animations, time-consuming preparation, and the need for projection equipment.

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18
Q

What equipment is required for a PowerPoint presentation?

A

A computer and projection equipment are required to display slides.

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19
Q

What are charts in Excel used for?

A

To represent data pictorially for better analysis.

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20
Q

What are the types of charts in Excel?

A

Column, bar, line, pie, scatter, and area charts.

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21
Q

What is a pie chart?

A

A circular chart divided into sectors proportional to values, representing one series of data.

22
Q

What is the limitation of pie charts?

A

They cannot display negative or zero values.

23
Q

What is a column chart?

A

A chart using vertical bars to compare items of data, representing one or more series.

24
Q

What is a bar chart?

A

A chart using horizontal bars to compare items of data, representing one or more series.

25
Q

What is a line chart?

A

A chart showing data trends over time, using lines to connect data points.

26
Q

What is an area chart?

A

A line chart with the area under the line filled, used to highlight trends over time.

27
Q

What is the limitation of area charts?

A

Smaller data series may be hidden behind larger series.

28
Q

What is a scatter chart?

A

A chart showing the relationship between two variables, indicating positive, negative, or no correlation.

29
Q

What is positive correlation in a scatter chart?

A

Both variables increase together.

30
Q

What is negative correlation in a scatter chart?

A

Both variables decrease together.

31
Q

What is no correlation in a scatter chart?

A

No consistent relationship between variables.

32
Q

What is an example of a pie chart?

A

Production of different crops, where each crop is represented as a sector of the circle.

33
Q

What is an example of a column chart?

A

Crop production values compared using vertical bars for each crop.

34
Q

What is an example of a scatter chart?

A

Age vs. Height, showing the relationship between two variables.

35
Q

What is the purpose of slide sorter view in PowerPoint?

A

To add or manage slide transitions.

36
Q

How can you replace fonts across all slides in PowerPoint?

A

Use the Replace Fonts option in the Home Tab.

37
Q

How do you select hyperlinks sequentially during a slide presentation?

A

Press the Tab key to navigate between hyperlinks.

38
Q

What is the role of presenter notes in PowerPoint?

A

To provide additional details for the presenter without cluttering the slides.

39
Q

What is the rehearsal function in PowerPoint?

A

Allows practicing presentation timing and monitoring the length of a slideshow.

40
Q

What is data integrity?

A

Ensuring the accuracy and appropriateness of data analysis.

41
Q

What is the function of animations in PowerPoint?

A

To add movement and visual effects to enhance presentations.

42
Q

What is the importance of MS PowerPoint integration?

A

Allows seamless use of Excel charts, Word documents, and multimedia within presentations.

43
Q

What is the advantage of area charts?

A

Show trends over time while highlighting the total value.

44
Q

What is the main use of line charts?

A

To plot changes in data over time, like sales trends or stock prices.

45
Q

What are the types of correlation?

A

Positive correlation, negative correlation, and no correlation.

46
Q

Why are pie charts limited to one series of data?

A

They can only display proportions of a single category at a time.

47
Q

What is the disadvantage of animations in PowerPoint?

A

They may distract the audience from the main information.

48
Q

What are the practical uses of bar charts?

A

To compare data items like production or sales across categories.

49
Q

What is an example of data classification?

A

Grouping survey responses into categories like age groups or income levels.

50
Q

What are the uses of Excel charts?

A

To visualize data trends, compare values, and highlight correlations.

51
Q

What are the practical uses of PowerPoint?

A

Creating business presentations, educational content, and informal slideshows.

52
Q

How does PowerPoint improve public speaking?

A

With presenter notes, narration, and rehearsal tools for timing.

Agriculture informatics (8 decks)

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