circle graphs

Front

What is a circle graph?

Back

A circle graph, also known as a pie chart, is a circular statistical graphic divided into slices to illustrate numerical proportions.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 30% becomes 0.30.

Front

What is the formula to find the percentage of a number?

Back

The formula is: (Part/Whole) x 100 = Percentage.

Front

If a circle graph shows that 25% of students prefer soccer, how many students prefer soccer if there are 200 students?

Back

50 students prefer soccer (0.25 x 200 = 50).

Front

What does each slice of a circle graph represent?

Back

Each slice represents a part of the whole, showing how much of the total each category contributes.

Front

How can you compare data in a circle graph to a bar graph?

Back

You can compare the size of the slices in a circle graph to the height of the bars in a bar graph to see which categories are larger or smaller.

Front

What is the total percentage represented in a circle graph?

Back

The total percentage in a circle graph always equals 100%.

Front

How do you find the angle of a slice in a circle graph?

Back

To find the angle, use the formula: (Percentage/100) x 360 degrees.

Front

What is the relationship between circle graphs and fractions?

Back

Circle graphs can represent fractions, where each slice corresponds to a fraction of the whole.

Front

If a circle graph shows 40% of students like basketball, what fraction represents this?

Back

The fraction is 2/5 (40% = 40/100 = 2/5).