Q. what is the purposes of visual aids?
Answer: we should use visual aids to
Emphasize
Simplify
Clarify
Rent force
Summaries
Add interest
Improve credibility
Increase coherences
Q. what are the criteria for effective visual aids?
Answer:
Principals of graphics
Simplicity
Contrast
Unity
Balance
Identification and placement
Q. what is choosing and contracting visual aids?
Answer:
Bar charts: a bar chart is a graphic that uses two or more rectangles alone with vertical and horizontal excises two represent information. Bar charts are used to compare discrete quantitative information such as the number of females and males in a training program.
Pie charts: a pie chart is a circle divided in two segments. The circle represents the whole amount and each segment presents a proportion of the whole. A pie chart is effective when you want to emphasize relative proportions.
Line charts: a line chart consists of a vertical exist a horizontal exis or more plotted lines.
Relationship charts: a relationship chart shows house several non-numeric factors act together.
Table: both formal and informal tables are used in report. A table consists of column and rows of quantities data alone with labels to identify date.
Pictograph:
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