Question
The speed of a boat in still water is 9 km/hr and speed
of current is 5 km/hr. If time taken to cover a certain distance upstream is 14 hours, then how long will the boat take to cover the same distance downstream?Solution
Total distance = 14 × (9 – 5) = 56 km Required time = 56/(9 + 5) = 4 hrs
Why is sampling commonly used in data analysis, especially when dealing with large datasets?
In wireless networking, what does the 802.11ac standard primarily improve over 802.11n?
How does metadata contribute to effective data management in large-scale data systems?
In descriptive statistics, which of the following measures is least affected by extreme values (outliers)?
Which of the following forecasting methods is most suitable for data with a linear trend but no seasonality?
Which visualization is best for showing trends over time?
Which data visualization tool is most suitable for creating interactive dashboards and sharing visual insights with stakeholders ?
When using descriptive statistics, which measure is best for understanding data variability?
Which of the following is the primary reason for ensuring stationarity in time series data before applying ARIMA models?
In SQL, which type of join returns all records from the left table and the matched records from the right table, and fills in NULL values for non-matchi...
