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NPTEL Data Science for Engineers Assignment 7 Answers Updates 2022

Are you looking for help in NPTEL Data Science for Engineers Assignment 7 Answers? If yes, then you have landed on the correct article because here we have provided question-answer hints for you.

NPTEL Data Science for Engineers Assignment 7 Answers (Week 7)

Q1. Which of the following algorithms is/are suitable for the below problem statement?

Problem Statement: To classify the severity of the infection on covid-19 patients as critical/ not critical based on their comorbidity, habits, and some other demographics data.

a. Linear Regression
b. Logistics Regression
c. K-Means
d. Decision tree

Answer: a. Linear Regression
b. Logistics Regression

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Q2. Which parameter determines the goodness of fit of a Logistic Regression model?

a. Sensitivity

b. Adjusted R-squared

c. RMSE

d. Accuracy

Answer: b. Adjusted R-squared
d. Accuracy

Q3. Which of the following functions is used to bind the probability of x between 0 and 1?

a. Log function

b. Sigmoid function

c. Sine

d. Cosine

Answer: b. Sigmoid function

Q4. Which of the following strategies do we apply to obtain the best fit line for data in Linear Regression?

a. Logarithmic loss

b. Maximum likelihood

c. Least square error

d. Both B and C

Answer: c. Least square error

Refer to the confusion matrix mentioned below for answering question 5. The matrix results from a classification model applied to test the working condition of parts of a refrigerator based on some parameters.

TruePredictedPredicted
NegativePositive
Negative607115
Positive398713

Q5. What is the value of specificity?

a. 0.861

b. 0.841

c. 0.642

d. 0.159

Answer: b. 0.841

VariablesDescription
PricePrice of the Car (in $)
AgeAge of the car (in years)
KMTotal distance travelled
CCEngine Size (in cm³)

Q6. The R-Squared for the built linear model is ___

a. 0.7516

b. 0.6317

c. 0.8111

d. 0.8107

Answer: a. 0.7516

Q7. According to the built model, which variable has no contribution to the model?

a. Age

b. KM

c. CC

d. None of the above

Answer: c. CC


Disclaimer: These answers are provided only for the purpose to help students to take references. This website does not claim any surety of 100% correct answers. So, this website urges you to complete your assignment yourself.


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