Mastering Pie Graph Techniques

A student is creating a pie graph to represent the distribution of time spent on different activities in a day. The largest activity is "Sleeping" at 35%. According to the pie graphing rules provided, which of the following is the correct way to begin constructing the graph?

• Start at 3 o'clock and draw the smallest section first.

• Start at 12 o'clock (noon) and draw the largest section first, moving clockwise.

• Start at 6 o'clock and draw the largest section first, moving counterclockwise.

• Start at 12 o'clock and draw the smallest section first, moving clockwise.

Tags

NGSS.MS-PS3-1

A student uses a pen and freehand to draw the sections of a pie graph. According to the rules, what is the strategic reasoning for not following this method?

• Pens are more colorful than pencils.

• Freehand drawing and using a pen can lead to inaccuracies, violating the 1% margin of error and the requirement to use a ruler and sharp wooden pencil.

• Pencils are more expensive than pens.

• Freehand drawing is faster.

If a pie graph is constructed with the sections drawn in a counterclockwise direction, what is the potential impact on the interpretation of the data, based on the rules provided?

• The data will be interpreted more quickly.

• The order of categories may confuse viewers, as the standard is to follow a clockwise motion, possibly leading to misinterpretation.

• The graph will be more visually appealing.

• There will be no impact.

While planning your pie graph, you realize that your calculated section percentages add up to 99%. What should your next step be, considering the margin of error rule?

• Proceed, since the error is within the 1% margin.

• Recalculate the percentages to ensure they sum to 100%, as the error is at the maximum allowed and could affect accuracy.

• Add an extra section for the missing 1%.

• Ignore the error.

You are asked to justify the importance of following the rule to use a ruler when making a pie graph. Which of the following is the best justification?

• A ruler makes the graph look more colorful.

• Using a ruler ensures straight, accurate lines for each section, which is essential for maintaining the 1% margin of error and overall precision.

• A ruler is easier to use than freehand.

• A ruler is required for all types of graphs.

Which sport makes up 25% of the data? (a)  

• Soccer
• Softball
• Football
• Basketball