AI Quiz: EDA Pandas Leave a Comment / By studentseoasis.org / July 4, 2026 Welcome to your AI Quiz: EDA Pandas Name Assignment Link 1. Which pandas function is used to get a quick statistical summary (mean, std, min, max, quartiles) of numerical columns? df.info() df.describe() df.summary() df.stats() None Comment Hint 2. Which method is used to check for missing values in a DataFrame? df.dropna() df.fillna() df.isnull() df.notnull() None Comment Hint 3. What does df.shape return? Data types of columns A tuple of (rows, columns) The first 5 rows Column names only None Comment Hint 4. Which plot is best for detecting outliers visually? Line plot Box plot Pie chart Bar chart None Comment Hint 5. Which pandas method removes duplicate rows from a DataFrame? df.unique() df.drop_duplicates() df.remove_duplicates() df.distinct() None Comment Hint 6. Which correlation value indicates a strong negative relationship between two variables? 0.050000000000000003 0.84999999999999998 -0.90000000000000002 0 None Comment Hint 7. Which pandas function is used to combine two DataFrames based on a common column? pd.concat() pd.merge() pd.join() pd.append() None Comment Hint 8. What does df.dtypes show? Number of null values Data type of each column Number of unique values Column statistics None Comment Hint 9. Which method fills missing values with a specified value? df.dropna() df.isna() df.fillna() df.replace_na() None Comment Hint 10. In EDA, what is the primary purpose of a histogram? To show correlation between two variables To show the distribution of a single numerical variable To show categorical proportions To show time-series trends None Comment Hint 11. Which pandas function groups data and applies an aggregate function? df.groupby() df.pivot() df.aggregate() df.apply() None Comment Hint 12. Which library is commonly used alongside pandas for visualizing distributions during EDA? NumPy Seaborn Scikit-learn Requests None Comment Hint 13. What does a high skewness value in a distribution indicate? The data is perfectly normal The data is symmetric The data is asymmetric/skewed to one side There are no outliers None Comment Hint 14. Which pandas attribute/method is used to view the first 5 rows of a DataFrame? df.top() df.head() df.first() df.preview() None Comment Hint 15. Which plot is most commonly used to visualize the correlation matrix of a dataset? Scatter plot Heatmap Box plot Histogram None Comment Hint 1 out of 15 Time's up
