Recording whom students study with describes types of data; whereas recording the number of hours spent studying per week describes types of data.

Recording whom students study describes qualitative types of data; whereas recording the number of hours spent studying per week describes quantitative types of data.

Explanation:

Qualitative data involves descriptors and characteristics that cannot be measured easily, such as attractiveness, texture, tastes, smells and so on.

Quantitative data, on the other hand, involves things you can objectively measure and numbers, basically, data that you can record such as humidity, temperature, length, width, height, volume, area and so on

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