Explanation:DataFrame has a method cov to compute pairwise covariances among the series in the DataFrame, also excluding NA/null values. 4. Which of the following specifies the required minimum number of observations for each column pair in order to have a valid result ?
A. min_periods
B. max_periods
C. minimum_periods
D. All of the Mentioned
Answer:A
Explanation:DataFrame has a method cov to compute pairwise covariances among the series in the DataFrame, also excluding NA/null values. 4. Which of the following specifies the required minimum number of observations for each column pair in order to have a valid result ?
A. min_periods B. max_periods C. minimum_periods D. All of the Mentioned
Explanation:DataFrame.cov also supports an optional min_periods. 5. Point out the wrong statement: