Descriptive Statistics

What is Descriptive Statistics?

• Methods for organizing, displaying, and describing data using tables, graphs, and summary measures.

• Techniques for predicting future outcomes based on data trends.

• Mathematical procedures for proving statistical theorems.

• Processes for collecting raw data without any analysis.

Tags

CCSS.HSS.ID.A.4

What is Qualitative Data?

• Data that represents categories or qualities, not numbers.

• Data that is always numerical.

• Data that can only be measured in units.

• Data that is always continuous.

What is Raw Data?

• Data collected in its original form.

• Data that has been processed and analyzed.

• Data that is always numerical.

• Data that is always graphical.

Tags

CCSS.6.SP.B.5B

What is Frequency?

• The number of times a value or category occurs.

• The average of all values in a dataset.

• The difference between the highest and lowest values.

• The sum of all values in a dataset.

Tags

CCSS.6.SP.B.5A

What is Relative Frequency?

• The proportion of total observations in a specific class (frequency ÷ total); expressed as a decimal.

• The total number of observations in all classes combined.

• The difference between the highest and lowest frequencies in a dataset.

• The sum of all frequencies divided by the number of classes.

Tags

CCSS.8.SP.A.4

What is Percentage in the context of statistics?

• Relative frequency multiplied by 100.

• The sum of all frequencies.

• The difference between highest and lowest values.

• A type of average value.

Tags

CCSS.8.SP.A.4

What is a Frequency Distribution?

• A table showing each category and the number of occurrences.

• A graph showing the relationship between two variables.

• A list of all possible outcomes of an experiment.

• A chart displaying the mean and median of data.

What is a Relative Frequency Distribution?

• A table showing each category with its relative frequency.

• A graph showing the mean of a dataset.

• A list of all possible outcomes in an experiment.

• A chart displaying only the highest frequency.

Tags

CCSS.8.SP.A.4

Bar Graph: ________

• Uses bars to display frequency or relative frequency for each category.

• Shows the relationship between two numerical variables using points.

• Displays data in a circular graph divided into sectors.

• Represents data using lines connecting data points.

Pareto Chart: ________

• A bar graph with bars ordered from highest to lowest frequency.

• A line graph showing trends over time.

• A scatter plot showing correlation between variables.

• A pie chart representing parts of a whole.