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AysviL [449]
2 years ago
7

You are adding more features to a linear regression model and hope they will improve your model. If you add an important feature

, the model may result in.
1. Increase in R-square
2. Decrease in R-square
A) Only 1 is correct
B) Only 2 is correct
C) Either 1 or 2
D) None of these
Computers and Technology
1 answer:
Ludmilka [50]2 years ago
8 0

Answer:

The answer is "Option A".

Explanation:

Add extra functionality, otherwise, it increases the R-square value, which is defined in the following points:      

  • To incorporate essential elements, R-square is explicitly promoted.
  • It Increases the R-square value, which is an additional feature.
  • It removes the features, which provide the value of the reduce R-square.
  • After incorporating the additional features is used as the model, which is R-square, which is never reduced.
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________ is the application of statistical techniques to find patterns and relationships among data for classification and predi
Finger [1]

Answer:          

Data Mining

Explanation:

  • Data Mining is also called knowledge discovery.
  • It is a computer aided technique of searching and evaluating a bulk of data in order to obtain useful information.
  • This technique searches through the data to find hidden patterns and uses statistical methods to find relationship among data for finding predictive information and for classification of data.
  • This is a mixture of different disciplines which include machine learning, statistics and artificial intelligence and also some mathematical methods.
  • Often the useful information is extracted from enormous database using modeling technique which is used to build a model from instances of the data where the solution is known and later apply this model on the instances where the solution is unknown.
  • In unsupervised data mining, the data analysis is not done by using modeling technique. In other words the labels are provided in order not draw inferences and prediction from data sets. Example is clustering.
  • In supervised data mining the model is developed to make inferences and classification. Example is neural networks.
  • For example data mining is used in Medicine industry to provide more accurate diagnostics and treatments on the basis of patient's medical history , physical examination or different patient tests data.
  • Data mining also makes it possible to manage health resources more efficiently and cost-effectively by detecting risks, predicting diseases in certain sections of the population or predicting hospitalization duration.
4 0
3 years ago
Could anyone please answer this?
Anastaziya [24]

Answer:

D

Explanation:

The answer is D because if you're looking for lightweight materials, you'll be dealing with chemistry, and chemistry is sience.

4 0
2 years ago
Why operating system is pivotal in teaching and learning
trasher [3.6K]

Answer:

Without it information flow is impossible

Explanation:

The word 'pivotal' also means crucial or vital, and so we need to consider what an operating system actually does.

Remember, merely having all the hardware of a computer would not allow you to run (install and use) programs. It is by means of an operating system that teaching programs can be installed, and it is also by means of an operating system learning can take place.

For example, a student can decode (learn) instructions/lessons from his teacher via a software program; and the software program needs an operating system to open (run) the program.

6 0
3 years ago
What is the differnce between ''P4 and 4P''
34kurt
The number and letter are switched. This question needs more context to get a accurate answer.
5 0
2 years ago
Read 2 more answers
What command issued from the command prompt will show the route that a packet travels from the issuing computer to another compu
svetoff [14.1K]

Answer:

B)tracert

Explanation:

Tracery Command can be regarded as

network diagnostic tool, it is used in tracking process of pathway of packet ranging from source to destination on IP network. It as well allows to know real time of each hops that are been taken by a packet as it enroutes to it's destination. The traceroute can be run by following these steps:

✓Open the run window

✓Open Command prompt, this can be done by enter "cmd" then enter.

✓ input" tracert" then destination ( Ip address or web address)

It should be noted that Tracery command issued from the command prompt will show the route that a packet travels from the issuing computer to another computer.

6 0
2 years ago
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