Computers And Technology College

what do you understand by statistic​

Answers

Answer 1

Statistics is the study and manipulation of data, including methods for data collection, evaluation, analysis, and interpretation.

Describe statistics using an example.

Finding out how many people in a town watch TV relative to the overall population of the town is an example of statistical analysis. Here, the small group of individuals drawn from the population is referred to as the sample.

What are types and statistics?

Statistics is a technique for interpreting, analyzing, and summarizing data in mathematics. In light of these characteristics, the various statistical types are divided into: Statistics that are descriptive and inferential. We analyze and understand data based on how it is presented, such as using pie charts, bar graphs, or tables.

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Related Questions

Which of the following devices can store large amounts of electricity, even when unplugged?
LCD monitor
DVD optical drive
CRT monitor
Hard disk drive

Answers

Even when unplugged, a CRT (Cathode Ray Tube) monitor can store a lot of electricity. The capacitors within CRT monitors can store enough power to be fatal, thus you should never open one.

What does CRT stand for?

An electron beam striking a phosphorescent surface creates images in a cathode-ray tube (CRT), a specialized vacuum tube. CRTs are typically used for desktop computer displays. The "picture tube" in a television receiver is comparable to the CRT in a computer display.

What characteristics does CRT have?

Flat screen, touch screen, anti-reflective coating, non-interlaced, industrial metal cabinet, and digital video input signal are typical features of CRT monitors. As opposed to the typically curved screen found in most CRT displays, the monitor's screen can be (almost) flat.

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Answer:

CRT monitor

Explanation:

A cathode ray tube (CRT) monitor can store large amounts of electricity, even when unplugged. You should never open a CRT monitor, as the capacitors within the CRT can store enough electricity to be lethal.

LCD monitors do not use large capacitors and are much safer to work on than CRT monitors (although the CCFL backlight has mercury vapor in it, which could be harmful if the tube is broken).

DVD optical drives and hard disk drives do not store electricity in sufficient quantity to be harmful.

Code to be written in python:

Correct answer will automatically be awarded the brainliest.

One of the senior wizards Yee Sian was trapped in a maze during a mission. The maze has n * m cells, labelled from (0, 0) to (n-1, m-1). Starting at cell (0, 0), each time Yee Sian can only take one step, either to the right or down. We wish to find out the number of possible paths to the destination (n - 1, m - 1). A sample path is shown in the figure below.

Having learnt the technique of speeding up the pascal function through memoization, you decide to apply it here. If Yee Sian can walk out by himself (number of paths > 0), tell him how many ways there are. Otherwise, report to Grandwizard and send a rescue team.

Write a function num_of_paths that takes in two integers representing the number of rows (n) and columns (m) in a maze and returns an integer value of number of paths from cell (0, 0) to cell (n - 1, m - 1). The table and skeleton code are given to you. Your table is essentially a dictionary that stores (i, j): val pairs which indicate the number of paths from cell (0, 0) to cell (i, j).

Note: You may assume that all inputs n and m are valid. i.e. n > 0, m > 0.

Incomplete Code:
table = {} # table to memoize computed values

def num_of_paths(n, m):
# your code here
pass


Test Cases:

num_of_paths(1, 100) 1
num_of_paths(123, 1) 1
num_of_paths(3, 3) 6
num_of_paths(10, 10) 48620
num_of_paths(28, 56) 3438452994457305131328

Answers

Here is the implementation of the num_of_paths function using memoization:


table = {}

def num_of_paths(n, m):
# base cases
if n == 0 or m == 0:
return 1
if (n, m) in table:
return table[(n, m)]
# number of paths is the sum of paths from top and left cells
paths = num_of_paths(n - 1, m) + num_of_paths(n, m - 1)
table[(n, m)] = paths
return paths

print(num_of_paths(1, 100)) # 1
print(num_of_paths(123, 1)) # 1
print(num_of_paths(3, 3)) # 6
print(num_of_paths(10, 10)) # 48620
print(num_of_paths(28, 56)) # 3438452994457305131328


This function uses the fact that the number of paths to a cell is the sum of the number of paths from its top and left cells. The base cases are when either n or m is 0, in which case there is only 1 path (by definition). The function also uses a table dictionary to store the computed values to avoid recalculating them.

Which of the following IPv4 addresses is a public IP address?

Answers

An example of Pv4 addresses that is a public IP address is

An example of a public IPv4 address is "8.8.8.8". This is a public IP address that is assigned to one of Go ogle's DNS servers. Any device connected to the Internet can use this IP address to resolve domain names and access websites.

What is the IP address about?

A public IP address is a globally unique IP address that is assigned to a device or computer that is connected to the Internet. Public IP addresses are used to identify devices on the Internet and are reachable from any device connected to the Internet.

On the other hand, private IP addresses are used within a local area network (LAN) or within a private network, and are not reachable from the Internet.

They are used to identify devices within a local network, such as a home or office network. Private IP addresses are not unique and can be used by multiple devices within a LAN.

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In the flag, the RGB values next to each band indicate the band's colour.
RGB: 11111101 10111001 00010011
RlGB: 00000000 01101010 01000100
RGB: 11000001 00100111 00101101
First, convert the binary values to decimal. Then, to find out what colours these values correspond to, use the Colour names' handout (ncce.io/rep2-2-hw) or look up the RGB values online. Which European country does this flag belong to?​

Answers

Answer:

To convert the binary values to decimal, you can use the following steps:

Start with the rightmost digit and assign it the value of 0.

For each subsequent digit moving from right to left, double the value of the previous digit and add the current digit.

For example, to convert the first binary value, 11111101, to decimal:

10 + 02 + 04 + 08 + 016 + 132 + 164 + 1128 = 253

So the first binary value, 11111101, corresponds to the decimal value 253.

Using this method, you can convert the other binary values to decimal as well. To find out what colours these values correspond to, you can use the Colour names' handout or look up the RGB values online.

To determine which European country this flag belongs to, you can try looking up the colours and seeing if they match any known flags. Alternatively, you could try searching for flags of European countries and see if any of them match the colours you have identified.

Explain how abstraction makes your computer easier to use. Give at least one example.

Answers

Abstraction removes all specific details, and any problems that will help you solve the problem. Thus makes your computer easier to use.

What is abstraction?

An abstraction is a generic thought as opposed to one that pertains to a specific thing, person, or circumstance. The concept of abstraction is one that applies to both the actual world and OOP languages.

The typical details of an idea are left out. Code that uses abstractions is simpler to comprehend since it focuses on the main functions and operations rather than the minute details. Don't program to implementations; program to interfaces.

Therefore, abstraction eliminates all specific information and any issues that could aid in problem-solving.

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