Answer:
Hard Disk
Explanation:
A very important part of a computer is the hard disk. It stores data and documents that users may have downloaded. Removing the hard disk could make the computer useless.
A mouse, keyboard, or pen drive can be easily removed.
A mouse and a pen drive are USB-connected devices and can be removed by simply unplugging the cable. A keyboard can be removed by simply taking off the keycaps. It is easily accessible.
-Chetan K
Answer:
The mean = 16
The standard deviation = 7.19
Explanation:
N1 = 200 X1 = 25 σ1 = 3
N2= 250 X2 = 10 σ2 = 4
N3 = 300 X3= 15 σ3 = 5
The mean of a combined distribution is given by:
The differences from the mean for each component are:
The standard deviation of a combined distribution is given by:
The mean = 16
The standard deviation = 7.19
Answer:
C.) Linux
Explanation:
Linux is an example of an operating system.It was developed by Linus Torvalds in 1991. It is a free and open source OS and is widely adopted across the industry and academia. Some other examples of operating system include Microsoft Windows, Solaris, HP-UX, Android etc.
Microsoft Word is an application for creating digital documents.
RAM stands for Random Access Memory which is the main volatile memory of a computer.