NPTEL Data Analytics with Python Week 8 Assignment Answers 2025
1. For categorical data with ‘n’ categories, the number of dummy variables will be________
- n
- n-1
- n+1
- 2n
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2. In estimation of regression parameters
- The likelihood function is a function of only 𝜎
- The values of 𝛽0,….,𝛽n and 𝜎 should be such that, they maximizes the likelihood function.
- Both (a) and (b)
- All of the above
Answer :-
3. In logistic regression, the null hypothesis tested is:
- H0: β = 0
- H0: β ≠ 0
- H0: μ = 0
- H0: μ ≠ 0
Answer :-
4. In logistic regression,
- The graph doesn’t follow S shape curve
- The dependent variable is categorical
- The estimated value of dependent variable is not probability
- None of the above
Answer :-
5. State true or false: G statistic is used to check the individual significance of the independent variables
- True
- False
Answer :-
6. The maximum likelihood estimate for binomial distribution is p = ___________
- 0.1
- 0.2
- 0.3
- None of the above
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7. State True or False: The Method of Least Squares can be applied to models with any probability distribution.
- True
- False
Answer :-
8. Suppose you have been given a fair coin and you want to find out the odds of getting heads. Which of the following option is true for such a case?
- Odds will be 0
- Odds will be 0.5
- Odds will be 1
- None of these
Answer :-
9. Large values of the log-likelihood statistic indicate:
- That there are a greater number of explained vs. unexplained observations.
- That the statistical model fits the data well.
- That as the predictor variable increases, the likelihood of the outcome occurring decreases.
- That the statistical model is a poor fit of the data.
Answer :-
10. The logit function(given as l(x)) is the log of odds function. What could be the range of logit function in the domain x=[0,1]?
- (– ∞ , ∞)
- (0,1)
- (0 , ∞)
- (- ∞, 0 )
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