Pie Charts

Front

What is a pie chart?

Back

A pie chart is a circular statistical graphic that is divided into slices to illustrate numerical proportions.

Front

How do you calculate the angle for a segment in a pie chart?

Back

To calculate the angle for a segment, use the formula: (Value of the segment / Total value) x 360 degrees.

Front

What does each slice of a pie chart represent?

Back

Each slice of a pie chart represents a proportion of the whole, showing how much each category contributes to the total.

Front

If there are 200 plants, and 20 are biennials, how many are perennials?

Back

If there are 200 plants and 20 are biennials, then there are 200 - 20 = 180 perennials.

Front

What is the total percentage of all slices in a pie chart?

Back

The total percentage of all slices in a pie chart always adds up to 100%.

Front

How do you convert a fraction to a percentage for a pie chart?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is the significance of the largest slice in a pie chart?

Back

The largest slice in a pie chart indicates the category with the highest value or proportion compared to others.

Front

If 40 out of 90 cars are red, what percent of the cars are red?

Back

(40/90) x 100 = 44.44%, so approximately 44% of the cars are red.

Front

What is a key advantage of using pie charts?

Back

A key advantage of using pie charts is that they provide a visual representation of data, making it easier to compare parts to a whole.

Front

What does it mean if a pie chart is not divided into equal slices?

Back

If a pie chart is not divided into equal slices, it indicates that the categories have different values or proportions.