Circle Graphs

Front

What is a circle graph (pie chart)?

Back

A circle graph, or pie chart, is a circular statistical graphic that is divided into slices to illustrate numerical proportions. Each slice represents a category's contribution to the total.

Front

How do you calculate the percentage of a category in a circle graph?

Back

To calculate the percentage of a category in a circle graph, divide the value of the category by the total value and then multiply by 100.

Front

If there are 200 total responses in a survey and 50 people chose option A, what percentage of respondents chose option A?

Back

25% (calculated as (50/200) * 100).

Front

What does it mean if a circle graph shows that 30% of respondents prefer cats?

Back

It means that out of all respondents, 30% indicated that they prefer cats over other options.

Front

How can you determine the number of individuals represented by a slice in a circle graph?

Back

Multiply the total number of individuals surveyed by the percentage represented by the slice.

Front

In a survey of 100 people, if 20% prefer soccer, how many people prefer soccer?

Back

20 people (calculated as 100 * 0.20).

Front

What is the relationship between the angles of a circle graph and the percentages of the categories?

Back

The angle of each slice in a circle graph is proportional to the percentage of that category, with a full circle being 360 degrees.

Front

If a circle graph shows that 14 out of 48 students chose soccer, what percentage of students chose soccer?

Back

Approximately 29.17% (calculated as (14/48) * 100).

Front

What is the importance of using circle graphs in data representation?

Back

Circle graphs provide a visual representation of data, making it easier to compare parts to a whole and understand proportions.

Front

How do you convert a fraction to a percentage for use in a circle graph?

Back

Divide the numerator by the denominator and multiply by 100.