Data 100 & 200A Principles and Techniques of Data Science Spring 2019 INSTRUCTIONS • You have 70 minutes to complete the exam. Midterm 1 • The exam is closed book, closed notes, closed computer, closed calculator, except one hand-written 8.5″ × 11″ crib sheet of your own creation and the official Data 100 study guide. […]
Data 100, Final Fall 2019 Name: Email: Student ID: Exam Room: First and last name of student to your left: First and last name of student to your right: All work on this exam is my own (please sign): @berkeley.edu Instructions: • This final exam consists of 117 points and must be completed in the
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Name: Email: Student ID: @berkeley.edu DS-100 Final Exam, Version A Fall 2018 Instructions: • This final exam must be completed in the 170 minute time period ending at 2:30 PM, unless you have accommodations supported by a DSP letter. • Note that some questions have bubbles to select a choice. This means that you should
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Data 100 Principles and Techniques of Data Science Summer 2019 INSTRUCTIONS Final Solutions • You have 2 hours and 50 minutes to complete the exam. • The exam is closed book, closed notes, closed computer, closed calculator, except for the provided midterm reference sheet and up to two 8.5″ × 11″ sheets of notes of
Name: Email: Student ID: @berkeley.edu DS-100 Final Exam Fall 2017 Instructions: • This final exam must be completed in the 3 hour time period ending at 11:00AM. • Note that some questions have bubbles to select a choice. This means that you should only select one choice. Other questions have boxes. This means you should
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DS 100/200: Principles and Techniques of Data Science Date: November 16, 2019 Name: SQL Review SQL 1. Circle TRUE or FALSE. (a) True (b) True (c) True (d) True False False False False SQL is a declarative language that specifies what to produce but not how to compute it. The primary key of a relation
Data 100 & 200A Principles and Techniques of Data Science Spring 2019 INSTRUCTIONS Final • You have 2 hours and 50 minutes to complete the exam. • The exam is closed book, closed notes, closed computer, closed calculator, except for the provided midterm 1 reference sheet and up to three 8.5″ × 11″ sheets of
Data 100 & 200A Principles and Techniques of Data Science Spring 2019 INSTRUCTIONS Final Solutions • You have 2 hours and 50 minutes to complete the exam. • The exam is closed book, closed notes, closed computer, closed calculator, except for the provided midterm 1 reference sheet and up to three 8.5″ × 11″ sheets
Spring 2019 Data 100/200A Midterm 1 Reference Sheet Pandas and Matplotlib df is a DataFrame; s is a Series. Function df[col] df[[col1, col2]] s.loc[rows] / df.loc[rows, cols] s.iloc[rows] / df.iloc[rows, cols] s.isnull() / df.isnull() s.fillna(value) / df.fillna(value) df.drop(labels, axis) df.rename(index=None, columns=None) df.sort_values(by, ascending=True) s.sort_values(ascending=True) s.unique() s.value_counts() pd.merge(left, right, how=’inner’, on=’a’) left.merge(right, left_on=col1, right_on=col2) df.set_index(col) df.reset_index(col)
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Name: Email address: Student id: DS-100 Final Exam Spring 2017 Instructions: • Please fill in you name, email address, and student id at the top of both this exam booklet and your answer sheet. • All answers must be written on the separate answer sheet. • This exam must be completed in the 3 hour
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