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Let the capacity of the tank be 420 litres {LCM (60 and 70)} Efficiency of pipe ‘A’ = 420 ÷ 60 = 7 litres/hour Efficiency of leak ‘A’ = 420 ÷ 70 = 6 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 7 – 6 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 420 ÷ 35 = 12 units/hour Efficiency of pipe ‘B’ = 12 – 1 = 11 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 420 ÷ (11 – 6) = 84 hours
Which time series application would most likely require ARIMA modeling for accurate forecasting?
Which of the following statements correctly differentiates between continuous and categorical data?
In SQL, which type of JOIN will return all rows from the left table and the matching rows from the right table, filling with NULLs where there is no match?
To help a retail business increase its conversion rate, a data analyst should start by defining which of the following metrics?
In Huffman Coding, which property ensures that no code is a prefix of another?
Which of the following best describes the primary role of a data analyst within an organization?
Which of the following is the best example of metadata in a database system?
Which data collection method is best suited for obtaining real-time data from a third-party application?
When integrating multiple datasets, which approach helps resolve inconsistencies and create uniformity across all data sources?
If a dataset has a mean significantly higher than the median, which of the following is most likely true?
