**NPTEL Data Science for Engineers Assignment 6 Answers 2022:-** All the Answers provided below to help the students as a reference, You must submit your assignment at your own knowledge.

## What is Data Science for Engineers?

Data Science for Engineers is a fun-filled course where Domain Certification helps learners to gain expertise in a specific Area/Domain. This can be helpful for learners who wish to work in a particular area as part of their job or research or for those appearing for some competitive exam or becoming job-ready or specializing in an area of study.

Every domain will comprise Core courses and Elective courses. Once a learner completes the requisite courses per the mentioned criteria, you will receive a Domain Certificate showcasing your scores and the domain of expertise.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of the average of best 6 assignments out of the total 8 assignments given in the course.

Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score**YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF THE AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.**

COURSE NAME | ANSWER |

NPTEL Data Science for Engineers Assignment 1 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 2 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 3 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 4 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 5 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 6 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 7 Answers | Click Here |

NPTEL Data Science for Engineers Assignment 8 Answers | NA |

## NPTEL Data Science for Engineers Assignment 6 Answers 2022 {July – Dec}

**1. Choose the correct option that best describes the relation between the variables x and y in the given data**

a. Randomly sampled

b. Negatively correlated

c. Positively correlated

d. None of the above

Answer:-

**2. Identify the parameters β0β0 and β1β1 that fits the linear model β0+β1x using the following information: total sum of squares of X, SS _{XX}=52.53, SS_{XY}=52.01, mean of x,x¯=4.46,x,x¯=4.46, and mean of y,y¯=6.32**

a. 1.9 and 0.99

b. 10.74 and 1.01

c. 4.42 and 1.01

d. None of the above

Answer:-

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**3. The model built from the data given below is Y=1.39x+6.09. Find the values for R2 and Adjusted R2.**

Answer:-

**4. Linear Regression is an optimization problem where we attempt to minimize**

Answer:-

**5. What is the relationship between the variables height and weight?**

Answer:-

**6. What is the R-Squared value of the model obtained in Q5?**

Answer:-

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**7. Based on the model relationship obtained from Q5, what is the residual error obtained while calculating the weight of a woman with height 69 cms?**

Answer:-

**8. State whether the following statement is True or False.**

Covariance is a better metric to analyze the association between two variables than correlation.

a. True

b. False

Answer:-

**9. If R2 is 0.6, SSR=200 and SST=500, then SSE is**

Answer:-

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## NPTEL Data Science for Engineers Assignment 6 Answers 2022 {Jan – June}

**Q1.** Which of the following quantities can be used to make a preliminary check on the association between 2 variables?

- Mean
- Variance
- Correlation coefficient
- Standard deviation

**Answer:- c**

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**Q2.** State whether the following statement is True or False

In linear regression, only the dependent variable has errors.

- True
- False

**Answer:-** b

**Q3.** Linear Regression is an optimization problem where we attempt to minimize

- SSR (residual sum-of-squares)
- SST (total sum-of-squares)
- SSE (sum-squared error)
- Slope

**Answer:-** c

**Q4.** When a linear regression model is obtained without an intercept, the resultant *β*0

**Answer:-** a, b

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**Q5.** What is the relationship between the variables height and weight?

**Answer:-** a

**Q6.** Which of the following components are significant in determining the weight of a woman?

**Answer**:- c

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**Q7.** What is the R-Squared value of the model obtained in Q5?

**Answer:-** b

**Q8.** Based on the model relationship obtained from Q5, what is the residual error obtained while calculating the weight of a woman with height of 69 cms?

**Answer:-** d

**Q9.**Which of the following quantities cannot be used to measure the goodness of fit of a linear regression model?

**Answer:-** a, c

**Q10.** State whether the following statement is True or False.

Covariance is a better metric to analyze the association between two variables than correlation.

**Answer:-** b

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**NPTEL Data Science for Engineers Assignment 6 Answers 2022:-** All the Answers provided below to help the students as a reference, You must submit your assignment at your own knowledge.

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