Graded Quiz Unit 6 CS 4407This is all you need to get the maximum point. Browse through to get the needed insights for your submission. PDF

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Download Graded Quiz Unit 6 CS 4407This is all you need to get the maximum point. Browse through to get the needed insights for your submission. PDF

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12/22/21, 11:16 PM

Graded Quiz Unit 6: Attempt review

Dashboard / My courses / CS 4407 - AY2022-T2 / 16 December - 22 December / Graded Quiz Unit 6

Started on

Sunday, 19 December 2021, 11:05 PM

State Finished Monday, 20 December 2021, 12:11 AM

Completed on Time taken Marks

1 hour 5 mins 14.00/14.00

Grade 100.00 out of 100.00 Question

1

Correct Mark 1.00 out of 1.00

The first artificial neural network model was developed by:

Select one: a.

McCulloch and Pitts



b. Rumelhart and McClelland c.

Bar and Yam

d. Kauffman

Your answer is correct. The correct answer is: McCulloch and Pitts

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1/8

12/22/21, 11:16 PM Question

Graded Quiz Unit 6: Attempt review

2

Correct Mark 1.00 out of 1.00

True/False: A regression model has a R2 statistic of .95. This indicates that the regression model is NOT a good fit and does a poor job of predicting the outcome based upon the input variables. 

Select one: True False 

The correct answer is 'False'.

Question

3

Correct Mark 1.00 out of 1.00

Assuming K=3 how would the point X be classified using KNN? Training Distance Class point d1

4

Red

d2

3

Blue

d3

5

Blue

d4

7

Red

Select one: a.

Red

b. Blue



Your answer is correct. The correct answer is: Blue

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2/8

12/22/21, 11:16 PM Question

Graded Quiz Unit 6: Attempt review

4

Correct Mark 1.00 out of 1.00

Assume that you are the data scientist for ACME sporting goods and you have been asked to develop a predictive model that will help the company determine which products to produce and in what quantities for the upcoming sports season. You have historical data from many years with data that includes all of the factors that impacted sales of different types of products. Which of the following techniques are you most likely to use?

Select one: a.

Linear Regression



b. K-nearest neighbor’s classification c.

Bayes Classifier

d. Hierarchical clustering

Your answer is correct. The correct answer is: Linear Regression

Question

5

Correct Mark 1.00 out of 1.00

Assume that you are the data scientist for a new email provider called fastmail.com. Fastmail intends to differentiate their email service from other email providers by providing excellent spam mail detection and elimination. You have been tasked with developing a machine learning solution that can detect whether an email message received into a users mail inbox is a spam mail. Which of the following techniques are you most likely to use?

Select one: a.

Linear Regression

b. A Classifier based upon Bayes theorem c.



Hierarchical clustering

d. Principle components analysis

Your answer is correct. The correct answer is: A Classifier based upon Bayes theorem

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3/8

12/22/21, 11:16 PM Question

Graded Quiz Unit 6: Attempt review

6

Correct Mark 1.00 out of 1.00

True/False: According to our textbook, residual plots are a useful tool for identifying clusters.

Select one: True False 

The correct answer is 'False'.

Question

7

Correct Mark 1.00 out of 1.00

True/False: Weights in the artificial neuron are adjusted to ensure that the inputs will produce the output while training.

Select one: True  False

The correct answer is 'True'.

Question

8

Correct Mark 1.00 out of 1.00

Assuming a data set with 1000 training outcomes of which 332 are positive, what is the Entropy? Round your answer to the nearest thousandths place.

Answer:

0.917



The correct answer is: 0.917 https://my.uopeople.edu/mod/quiz/review.php?attempt=6444495&cmid=269418

4/8

12/22/21, 11:16 PM Question

Graded Quiz Unit 6: Attempt review

9

Correct Mark 1.00 out of 1.00

Assuming you have the following sample data values (11,5,2,12,9), what is the Z-Score normalized value for 7. Provide your response rounded to the hundredths place.

Answer:

-0.19



The correct answer is: -0.19

Question

10

Correct Mark 1.00 out of 1.00

Assuming you have the following data values (12,11,2,13,8,10), what is the min-max normalized value for 6. Provide your response rounded to the thousandths place.

Answer:

0.364



The correct answer is: 0.364

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5/8

12/22/21, 11:16 PM Question

Graded Quiz Unit 6: Attempt review

11

Correct Mark 1.00 out of 1.00

True/False: A learning algorithm that is very accurate to the available training data, but when exposed to new cases has a high degree of variance and error is set to be “Overfit”.

Select one: True  False

The correct answer is 'True'.

Question

12

Correct Mark 1.00 out of 1.00

Assuming K=1 how would the point X be classified using KNN? Training Distance Class point d1

4

Red

d2

3

Blue

d3

5

Blue

d4

7

Red

Select one: a.

Red

b. Blue



Your answer is correct. The correct answer is: Blue

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6/8

12/22/21, 11:16 PM Question

Graded Quiz Unit 6: Attempt review

13

Correct Mark 1.00 out of 1.00

Assuming a data set with 20 training outcomes of which 12 are positive, what is the Entropy? Round your answer to the nearest thousandths place.

0.971

Answer:



The correct answer is: 0.971

Question

14

Correct Mark 1.00 out of 1.00

As a new data scientist for the Moogle corporation, you are asked to develop an algorithm that can detect spam emails and deliver them into a spam folder instead of an inbox. After looking at a plot of the data it looks like the following. Which technique would you use for your algorithm?

Select one: a.

Linear Regression

b. Curvilinear Regression c.

Spline Regression

d. Logistic Regression



Your answer is correct. The correct answer is: Logistic Regression

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7/8

12/22/21, 11:16 PM

Graded Quiz Unit 6: Attempt review

◄ Self-Quiz Unit 6 Jump to... Basic Prop Neural Network Simulator ►

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