Useful tips for everyday
What is the relationship between covariance and independence of random variables? ‘ We’ve said that if random variables are independent, then they have a Covariance…
Is 12 volts enough to start a car? This voltage range means the battery is in good condition for starting the vehicle. If the measured…
How do I force restart my iPhone 3GS? Press and hold both the power button and the home button for at least 10 seconds or…
How add primary key constraint to existing column in SQL Server? Using SQL Server Management Studio In Object Explorer, right-click the table to which you…
What is process structure in UNIX? A process in UNIX contains three sections: text, data, and stack. Text section contains the instructions. Those instructions could…
Is it legal to make similar app? It is legal, as long as: They don’t have any process patents that you infringe on (most companies…
How do you tell if the columns of a matrix are orthogonal? A matrix P is orthogonal if PTP = I, or the inverse of…
How can I increase the speed of loading images? Resize Images Before Using Them. Compress Images To Save Even More Size. Use a CDN to…
What is usr bin directory? /usr/bin is a standard directory on Unix-like operating systems that contains most of the executable files (i.e., ready-to-run programs) that…
How do I clone a variable in SPSS? Clone Variables. Specify the variables you’d like to clone and some prefix: the names for the cloned…