CCRG Chapter 7 Statistics Flashcard

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to compare quantities.

Front

What does a circle graph (pie chart) represent?

Back

A circle graph, or pie chart, represents data as slices of a circle, showing the proportion of each category relative to the whole.

Front

How do you calculate the percentage of a group?

Back

To calculate the percentage, divide the part by the whole and multiply by 100.

Front

What is the average of a set of numbers?

Back

The average is found by adding all the numbers together and dividing by the number of items.

Front

What is a survey?

Back

A survey is a method of collecting data by asking people questions to gather information about their opinions or behaviors.

Front

What is the purpose of polling in statistics?

Back

Polling is used to gather data from a sample of individuals to make inferences about a larger population.

Front

How do you interpret data from a bar graph?

Back

To interpret data from a bar graph, compare the heights of the bars to see which categories have higher or lower values.

Front

What is the significance of the total number of respondents in a survey?

Back

The total number of respondents indicates the sample size, which affects the reliability and validity of the survey results.

Front

How can you find the difference between two quantities in a survey?

Back

To find the difference, subtract the smaller quantity from the larger quantity.

Front

What does it mean if a majority of respondents prefer one option in a survey?

Back

It means that more than half of the respondents chose that option, indicating it is the most popular choice.