There was a sudden rise in popularity of cryptocurrencies especially bitcoin when its price went through the roof! I have heard that Facebook is also starting a cryptocurrency, is this true or just a hoax? When will it launch? Is it different from other cryptocurrencies like Bitcoin?

I find the Windows lock screen to be very annoying. Once we boot the system, we have to perform one additional click to be able to enter the password. Is it possible to remove/disable the Windows lock screen in Windows 10 or is it impossible to do so?

On setting up Windows 10 for the first time on my PC, I saw Cortana. Is it necessary to set up at the beginning, or is it okay to skip it? It is also visible in the search bar. What is Cortana, and for what can it be used?

I'm new to Android Studio and I have problems importing classes. Please explain how classes are automatically imported into Android Studio. I am a Windows user. How to import classes automatically in Android Studio?

While I was working on my Android Studio with version 3.1.x, an error occurred, stating that "App of the session: APK installation error". I tried to reinstall after uninstalling the apk, but the problem remains the same. What can I do to correct this error?

When I was using Android Studio 0.2.3, I opened the presentation of my activity. My application preview should appear on the right side of the text so that I can easily switch between coded text and draft layout mode, which will show the layout of the activity multiple times. However, no layout is displayed on the right. I only receive rendering errors. How can I solve this problem?

I use MacOS High Sierra, but my Android Studio emulator does not work. It's Android Studio Emulator HAXM. Why it does not work? How can I make it work on my system? Does this system support the emulator?

When I tried to build my project it failed. The error came “peer not authenticated”. I tried to resync the project but the error remains same. What is this error? Is it a gradle sync error or SDK manager error and how can I deal with it?

In data analysis, all our prediction depends on the data we collected. What if there is a bias while collecting data. Unknowingly we may have collected false equivalence data which may result in the wrong conclusion at the end. It may lead to customer dissatisfaction and heavy losses in the future. So it is very crucial to remove bias from data.

For increasing technology and data, it is a crucial part for companies to invest their money and also to take the right decisions for their future development. It should also have an idea of its rivals statistics for their better performance. Can we decide which step is more feasible by analyzing previous data?