Data Literacy - Part I

Temperature recorded from sensors is an example of

• Structured data

• Unstructured data

• Semi-structured data

• not a type of data

Why is data diversity important in machine learning?

• To decrease the amount of data needed.

• To ensure the model can generalize to different scenarios.

• To simplify the data preprocessing process.

• To reduce the complexity of the model.

Which of the following data collection methods is primarily offline?

• A/B testing

• Online surveys

• Social media monitoring

• Field observations

Given the following characteristics:

• 1. Absolute zero point

• 2. No negative numerical value

• 3. Data values can be added, subtracted, divided, and multiplied

Which level of measurement is this?

• Ratio

• Interval

• Ordinal

• Nominal

A shoe store owner wants to know which shoe size is most popular among customers. Which statistical measure should they use to find the most frequently sold shoe size?

• mean

• median

• mode

• variance