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Exam Details:

• Format: Multiple Choice Question
• Questions: 10
• Passing Score: 8/10 or 80%
• Language: English

Here are the Questions and Answers:

Question 1: What does CSV stand for?

• Comma-separated values
• Car sold values
• Car state values
• None of the above

Question 2: What is the command to display the first five rows of a dataframe df?

• df.head()
• df.tail()
• df.first()
• df.first(5)

Question 3: Consider the dataframe df. What does the command df.rename(columns={‘a’:’b’}) change about the dataframe df?

• Renames column “a” of the dataframe to “b”.
• Renames row “a” to “b”.
• Nothing. You must set the parameter “inplace = True”.
• Replace a with b in entire column

Question 4: Consider the column of the dataframe, df[‘Fuel’], with two values: ‘gas’ and’ diesel’. What will be the name of the new columns pd.get_dumies(df[‘Fuel’]) ?

• 1 and 0
• Just ‘diesel’
• Just ‘gas’
• ‘gas’ and ‘diesel’

Question 5: Consider the dataframe “df”. What method provides the summary statistics?

• df.describe()
• df.head()
• df.tail()
• df.info()

Question 6: What value of R^2 (coefficient of determination) indicates your model performs best?

• -100
• -1
• 0
• 1

Question 7: Which statement is true about polynomial linear regression?

• Polynomial linear regression is not linear in any way.
• Although the predictor variables of polynomial linear regression are not linear, the relationship between the parameters or coefficients is linear.
• Polynomial linear regression uses wavelets.
• All of the above

Question 8: We create a polynomial feature PolynomialFeatures( degree=2). What is the order of the polynomial?

• 0
• 1
• 2
• 3

Question 9: What does K stand for in K mean algorithm?

• Number of clusters
• Number of data
• Number of attributes
• Number of iterations

Question 10: Identify the revision control system on the following.

• Scipy
• Numpy
• Git
• Scikit-Learn

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