Useful tips for everyday
How do you calculate error margin? How to calculate margin of error Get the population standard deviation (σ) and sample size (n). Take the square…
Is the Debian init.d script LSB compliant? This does not affect the Debian requirement to include LSB style dependency information in the init.d scripts used…
Is the variance of a sum the sum of the variances? For independent random variables X and Y, the variance of their sum or difference…
How do I get my recovery partition back? How to… Step 1: Scan Hard Disk for deleted partitions. If partition was deleted the space on…
Is WhatsApp encrypted over Wi-Fi? The messages you send on WhatsApp are end-to-end encrypted. This means that only your device, and that of the recipient,…
What do scientists test airplane wings in? According to Wired, wings are often tested by stacking bags of sand on top of them to mimic…
How do I attach an email to a form? Send Email with attachment on Form Submission Get the submitted form data using the $_POST method…
What is the relationship between odds ratio and P value? This probability is called the “p-value.” The p-value is calculated using the same numbers that…
How are variable inductors constructed? Variable Inductor It is formed by moving the magnetic core in and outside of the inductor windings. By this magnetic…
How can I insert an image into a rich textbox? Insert the required image in wordpad or MS-WORD. Save the file as ‘rtf’. Open the…