Answer:
[tex]\sigma_x = 5.68[/tex]
Explanation:
Given
[tex]x = 4, 14, 6, 2, 7, 12 2,17[/tex]
Required
The standard deviation
First, calculate the mean
[tex]\bar x =\frac{\sum x}{n}[/tex]
So, we have:
[tex]\bar x = \frac{4+ 14+ 6+ 2+ 7+ 12 +2+17}{8}[/tex]
[tex]\bar x = \frac{64}{8}[/tex]
[tex]\bar x = 8[/tex]
The standard deviation is:
[tex]\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n-1}}[/tex]
So, we have:
[tex]\sigma_x = \sqrt{\frac{(4 - 8)^2+ (14 - 8)^2+ (6 - 8)^2+ (2 - 8)^2+ (7 - 8)^2+ (12 - 8)^2+ (2 - 8)^2+ (17 - 8)^2}{8-1}}[/tex]
[tex]\sigma_x = \sqrt{\frac{226}{7}}[/tex]
[tex]\sigma_x = \sqrt{32.2857}[/tex]
[tex]\sigma_x = 5.68[/tex]
What are the advantages of Radio waves over micro waves?
Answer:
radio frequencies can penetrate deeply into the material and thus heat thick products. They heat more slowly than microwaves and thus make it possible to treat more delicate products which require a slower heating.
What types of customizations have you or would you make to your operating system, and why?
Answer:
Explanation:
I have made a couple of customizations to my OS, which is Windows 10. The first being that I activated dark mode, this feature turns the entire OS into a dark-themed color, including apps and menus. This makes using the computer for extended hours much easier on the eyes. The other very important customization I added was a hover taskbar. This allows me to add many important shortcuts to the taskbar which all appear when I hover over the taskbar. It makes my desktop much cleaner and I have quick and easy access to my most important applications.
2. Give technical terms for
a) A feature which computer never gets tired.
b) A memory to be used on fifth generation of computer.
c) Computer that used continues data
. d) An illegal activity that harms people by using computer.
e) A machine developed by Charles Babbage in 1833AD.
Answer:
Cccccccccccccccccccccccccccccccccc
which are the four different methods of formatting text in libreoffice writer
Answer:
The Text Formatting Bar that is displayed when the cursor is in a text object, such as a text frame or a drawing object, contains formatting and alignment commands.
if my answer helps you than mark me as brainliest.
is computers takes lots of time to do any mathematical calculations.
Answer:
I think the answer is a computer take lost of time to do any mathematical calculations because problem in the book or questions.
Hope this helps you ^^
Kolom terakhir pada lembar kerja Excel 2019 adalah
Answer:
Tahan CTRL dan tekan tombol panah kanan (tombol kursor) pada keyboard. Anda dibawa ke kolom paling kanan. Dalam versi Excel modern, ini adalah kolom XFD, yaitu 16.384 kolom. Di versi Excel yang lebih lama (2003 dan sebelumnya) kolom terakhir adalah IV yaitu 256 kolom.
in english
Hold down CTRL and press the right arrow key (cursor key) on the keyboard. You are taken to the right-most column. In the modern versions of Excel this is column XFD, which is 16,384 columns. In older versions of Excel (2003 and prior) the last column was IV which is 256 columns.
4 effect by which we can see several keyframes at once is
a. Onion Skin b. Layer Effect o c. Timeline Effect
5. You can control the speed of animation by increasing or decreasing the value in
a. Timeline a b. Fps Box O ㅁ c. Tools Panel
Write T for True and 'F' for False statements.
1. Pencil2D has autosave option for saving your work after every few minutes
2. The source code of Pencil2D is not available for users.
3. You cannot erase unwanted part of object or drawing on the stage 4. Hand tool is used to quickly move different parts of the stage. 5. Bitmap layer is used for raster graphics, which is made up of pixels.
Fill in the blanks.
1. Pencil2D is used to create animation using and graphics
2. The big white rectangle in the middle of your screen is called the
3. The is used to mark current frame displayed on the stage.
4 You can a layer to clearly identify it in the timeline.
5. Frame is the little in the Timeline, in which we create an image
6. You can fill color in your enclosed drawing or shape with tool.
Rachel is a junior system administrator for a network with a single Active Directory domain. The network has just expanded to include an additional subnet. Rachel has installed a new server running Windows Server 2016 on the new subnet and configure it as a DHCP server. When she checks the server icon in the DHCP Management console, she notices the server has a down icon. The DHCP server service has started, but the server does not respond to DHCP lease requests. What should Rachel do to solve the problem
Answer: Ask a member of the Enterprise Admins group to authorize the server.
Explanation:
From the information given, we are informed that Rachel installed a new server running Windows Server 2016 on the new subnet and configure it as a DHCP server but then realizes that the DHCP server service has started, but that the server does not respond to DHCP lease requests.
In this case, the reason for this can be attributed to the fact that the server hasn't been authorized, therefore, she can ask a member of the Enterprise Admins group to authorize the server.
8. Compare the advantages and disadvantages of using a smartphone rather than a laptop computer for creating a report.
Answer: the advantage of using a smartphone rather than a laptop computer is that you can talk to people across the world, call people, make texts, and get easy access to the internet. but the disadvantages are that a lot of people stay inside their house because of phones, not getting enough exercise.
Explanation:
The advantages and disadvantages of using a smartphone rather than a laptop computer for creating a report. have been compared below.
The advantages of using a smartphone rather than a laptop computer are;
Portability; Smartphones are portable enough that they can fit into pockets and some purses and as such can be taken with you anywhere easily unlike a laptop computer that doesn't have such physical property.Cost; Smartphones are largely cheaper than the average laptop computer. Thus, cost is a good factor.Disadvantages of using a smartphone rather than a laptop computer are;
Screen size; Smartphone screen size are always smaller than that of laptop computers .Software's; Smartphones can't run many of the type of powerful software's that can run on laptop computers.Data entry and user input; Due to the portability of smartphones, their keyboards are usually smaller than that of laptop desktops which makes data entry more difficult for those that have big fingers.Read more about smartphones and laptops at; https://brainly.com/question/21283135
In large organizations, there is a formal business function that includes developing an information policy, planning for data, overseeing logical database design and data dictionary development, and monitoring how information systems specialists and end user groups use data. __________ is responsible for information policy, as well as for data planning, data dictionary development, and monitoring data usage in the firm.
Answer:
Data administration.
Explanation:
Data management is a type of infrastructure service that avails businesses (companies) the ability to store and manage corporate data while providing capabilities for analyzing these data.
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to effectively and efficiently create, store, modify, retrieve, centralize and manage data or informations in a database. Thus, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
Generally, a database management system (DBMS) acts as an intermediary between the physical data files stored on a computer system and any software application or program.
Hence, a database management system (DBMS) is a system that enables an organization or business firm to centralize data, manage the data efficiently while providing authorized users a significant level of access to the stored data.
Data administration is a strategic process that is typically responsible for establishing information policy, data planning, data dictionary development, and monitoring data usage in the firm.
The program prompts the user for five to ten numbers all on one line, separated by spaces, calculates the average of those numbers, and displays the numbers and their average to the user.
The program uses methods to:
1) get the numbers entered by the user all on one line separated by spaces;
2) calculate the average of the numbers entered by the user; and
3) print the results.
The first method should take no arguments and return a String of numbers separated by spaces.
The second method should take a String as its only argument and return a double (the average).
The third method should take a String and a double as arguments but have no return value.
IF user input is: 20 40 60 80 100
Answer:
import java.util.Scanner;
public class AverageDemo
{
public static String getNumbers()
{
String numbers;
Scanner scn = new Scanner(System.in);
System.out.println("Enter five to ten numbers all on one line, separated by spaces: ");
numbers = scn.nextLine();
return numbers;
}
public static double calcAverage(String numbers)
{
String[] values = numbers.split(" ");
double total = 0;
for (int i = 0; i < values.length; i++)
{
total += Integer.parseInt(values[i]);
}
if (values.length == 0)
return 0.0;
else
return (total / values.length);
}
// Method definition of printResults: print the results
public static void printResults(String numbers, double average)
{
System.out.printf("\nThe average of the numbers %s is %.2f\n", numbers, average);
}
// main method
public static void main(String[] args)
{
// Call the methods
String numbers = getNumbers();
double average = calcAverage(numbers);
printResults(numbers, average);
}
}
Output:
What defines interactive media? The user must play a role in writing the content of the media. The user must do something that determines what happens next. The user must help design the overall look and feel of the presentation. The user must provide feedback after using the media.
Answer:
What Is Interactive Media?
Interactive media is a method of communication in which the program's outputs depend on the user's inputs, and the user's inputs, in turn, affect the program's outputs. Simply put, it refers to the different ways in which people process and share information, or how they communicate with one another. Interactive media allows people to connect with others—whether that's people or organizations—making them active participants in the media they consume
Answer:
The user must do something that determines what happens next.
It is B.
Travis just got promoted to network administrator after the previous administrator left rather abruptly. There are three new hires that need onboarding with user accounts. When Travis looks at all the existing account names, he notices there is no common naming system. Where should he look to try to give the new hires user accounts with proper naming conventions
Answer:
The company's account policy
Explanation:
If there's no common naming system, It's best to go with the company's account policy.
tiền tệ ra đời là kết quả
bruuh, wht is this man saying
How do we explain the difference between fake news and facts
Answer: it depends if the news is on the news and someone rights an article about it and says some mislead details that's how u know its fake
Explanation:
if ur computer is runing slowly what is most likey to slove the problem
Plz help help help
What was the first electromechanical digital computer?
For your kind information I would like to tell you that don't search on internet because it will show ENIAC and that is not the answer the answeris may be ABC or MARK I. I am just confused, Please help me
Explanation:
For your kind information the answer of the question is MARK I.
Answer:
What was the first electromechanical digital computer?
=⟩ Mark I was the first electromechanical digital computer.
Hope it helpful to you
monitor is hard copy output device??
false
true
Answer:
false
Explanation:
monitor is an output device but not hard copy. Hard copy is paper
You are the IT Director for Stormwind training studios. Your company has decided to start using Microsoft Intune for all of their software deployments. You want to set up a notification system so that you see all alerts and your IT Manager only gets notified for Critical alerts. How do you accomplish this
Answer:
Well, if the IT Manager gets only critical alerts on a phone, then the IT Manager has to go to settings and make sure to have all alerts on.
Explanation:
The IT Manager, probably has his notifications, critical alerts, on only. So the IT Manager should have his notifications to ALL. Where he will be able to see all of the alerts.
(e) Give the output of the following:
String n="Computer Knowledge";
String m = "Computer Applications";
System.out.println(n.substring(0,8).concat(m.substring(9)));
Answer:
Computer Applications
true
Answer:
Computer Applications
Explanation:
true
Write the contribution of Charles Babbage in the history of computer.
Answer:
The main contributions of Charles Babbage are;
1 ) He invented difference engine and analytical engine.
2) He gave basic concept of of mathematics in his analytical engine.
3) He also keep the concept of using binary digits in his machine.
4) He had led to the the foundation of modern computer in his analytical engine including the concept of of input, processing and output
Hope it helps.... :)Tristen is teaching her history course. She printed off her presentation so the students could take notes. Wyatt is
teaching a science course. He wants to make sure students who do not have PowerPoint can still view the
presentation. Reed is teaching a math course online. He finds the students are very visual and wants to control the
timing per slide
Which best describes how each teacher handled their presentations?
O Tristen created handouts, Wyatt saved as a PDF, and Reed saved as a video
O Tristen created a video, Wyatt saved as a PDF, and Reed broadcasted.
O Tristen created handouts, Wyatt saved as a video, and Reed saved as a PDF.
O Tristen created a video, Wyatt broadcasted, and Reed saved as a video
Since Tristen want her students to take notes on her presentations, she should have some sort of handout.
Because Wyatt, wants to ensure that students who do not have PowerPoint can still view his presentations, converting it into a pdf is best.
Since Reed's students are very visual, converting his slides into a video will make it better for students who want to spend some time assessing some of the graphs or equations.
Thus, A is the best choice.
Define Data communication
Explanation:
Data transmission and data reception is the transfer and reception of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers, wireless communication channels, storage media and computer buses.
Which category was originally developed to protect both digital and hard-copy sensitive information?
Answer:
Information assurance
Explanation:
Information assurance was originally developed to protect both digital and hard-copy sensitive information.
Selena owns a bakery. She wants to compare the number of pies, cookies, cakes, and brownies that she sells in one month. Which charts are appropriate for this task? Check all that apply.
Answer:
Column, Bar, And Pie
Explanation:
got it right
1. Answer the following questions: a. What are the different types of number system? Name them.
Answer:
binary,decimal, hexadecimal and octal number system
Help me why did my desktop erase every app I need that please
Answer:
Your computer is affected by a polymorphic or trojan horse virus, so install avast antivirus. Set your computer into safe mode, then open the antivirus
Answer:
your pc has virus
Explanation:
You are concerned about attacks directed at your network firewall. You want to be able to identify and be notified of any attacks. In addition, you want the system to take immediate action to stop or prevent the attack, if possible. Which tool should you use
Answer:
Intrusion Prevention System (IPS)
Explanation:
Firewall can be defined as a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.
Simply stated, a firewall is a network security protocol that monitors and controls inbound and outbound traffic based on set aside security rules.
A firewall is used to control access to a computer or network, as it creates a barrier between a computer or a network and the internet in order to protect against unauthorized access.
Basically, it is a network security device or security system pre-installed on most computers to essentially inspect data being transmitted to or from a computer
Thus, the tool you should use is an intrusion prevention system (IPS).
An attacker uses an exploit to push a modified hosts file to client systems. This hosts file redirects traffic from legitimate tax preparation sites to malicious sites to gather personal and financial information. What kind of exploit has been used in this scenario
Abdullah wants to send sessitive data. Abdullah wants to make sure that only ahmed can see and read this. How can abdullah protect this data, so that ahmed can only access it. By using this information make an algorithm.
Answer:
Use an encryption algorithm
Explanation:
An encryption algorithm can be used to hide the message from parties in-between or any third parties that might want to intercept the message being sent by Abudullah to Ahmed.
Encryption algorithms use cryptographic methods to encrypt or code data such that only the sender and receiver of that data have the keys to properly decode/decrypt these messages/data.
