Data Analysis Flashcard

Front

What are raw materials that are stored and analyzed for future purposes called?

Back

Data

Front

Metadata for a picture might include: The photographer's name, The camera model, The date the photo was taken

Back

All of the above

Front

Which of the following is considered the best descriptive variable name? x, data, userName, a

Back

userName

Front

Which of the following is true about tuples in Python? Tuples can be modified. Tuples are mutable. Tuples are immutable. Tuples cannot be indexed.

Back

Tuples are immutable.

Front

Which grammatical symbols are used to create a set in Python? ( ), [ ], { }, " "

Back

{ }

Front

Which of the following statements is NOT true about Python lists?
- Can't contain other lists.
- Can contain other lists.
- Can contain dictionaries.
- Can contain tuples.

Back

Can't contain other lists.

Front

What is the primary use of sets in Python?

Back

To store unique elements

Front

Which type of bias is associated with the pre-trial phase? Recall bias, Confounding, Selection bias, Performance bias

Back

Selection bias

Front

What type of bias may involve errors if the survey is taken after a long period of time has passed since an event?

Back

Recall bias

Front

What does "Sample Size" refer to in data challenges?

Back

Volume of data