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  Time between failures of wire-cut (in hours) 2 22 32 39 46 56 76 79 88 93 3 24 33 44 46 66 77 79 89 99 5 24 34 45 47 67 77 86 89 99 9 26 37 45 55 67 78 86 89 99 21 31 39 46 56 75 78 87 90 102 1. Calculate the mean, median, and mode of time between failures of wire-cuts . 2. The company would like to know by what time 10% (ten percentile or P10) and 90% (ninety percentile or P90) of the wire-cuts will fail. 3. Calculate the values of P25 and P75. ANS:- Mean :- The mean, often referred to as the average, is a statistical measure used to find the central or typical value of a set of numbers. To calculate the mean, you add up all the numbers in the set and then divide by the total number of values. The mean provides a single value that represents the “center” of the data set. Median:- The median is another measure of central tendency used in statistics. It is the middle value in a data set when the values are arranged in ascending or descending order. If there is an even number of va...

Unraveling the Evolution: An In-Depth Look into The History of Operating Systems   OS (Operation System) Introduction An operating system (OS) is an essential software that acts as an interface between users and computer hardware. It manages computer resources, supports the execution of applications, and ensures efficient utilization of the system. In this article, we will explore the fascinating history of operating systems, their current status, and delve into the most commonly used OS today. Origins and Evolution The Birth of Operating Systems In the early days of computing, there were no operating systems as we know them today. Computers were programmed directly in machine language, making the process highly cumbersome. The need for a more efficient way of interacting with computers gave birth to the concept of operating systems. Multics and the Rise of Timesharing Systems In the mid-1960s, MIT, Bell Labs, and General Electric embarked on the development of the Multics project....

  What is PHP, and what is its primary use in web development? PHP, which stands for "Hypertext Preprocessor," is a popular server-side scripting language used in web development. It was originally created by Rasmus Lerdorf in 1994 and has since evolved into a versatile and widely used tool for building dynamic websites and web applications. The primary use of PHP in web development is to handle server-side tasks, enabling web developers to create dynamic and interactive websites. Here are some key aspects of PHP's primary use in web development: Server-Side Scripting: PHP is primarily used on the server side, meaning it runs on the web server, not in the user's browser. When a user requests a web page, the PHP code on the server is executed, generating dynamic content and HTML that is then sent to the user's browser for display. Dynamic Web Pages: PHP allows developers to generate web pages with dynamic content. This means that web pages can display different i...