Data that summarize all observations in a category are called . . . . . . . . data.

The correct answer is: B. summarized

Summarized data is data that has been reduced in size or complexity in order to make it easier to understand or analyze. This can be done by grouping data together, calculating summary statistics, or creating graphs or charts.

Raw data is data that has not been processed or analyzed in any way. It is the original data that is collected from a study or experiment.

Frequency data is data that shows how often something occurs. It is often represented in a frequency table or histogram.

None of the other options are correct.