Machine Learning Practice · Quiz 1 · May 2024

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Questions and published explanations below are available without starting a test. Some questions may not have a published solution yet.

0 / 25 published solutions

Question 132 NAT · 2.5 marks

Consider a dataset that has 25 data-points. The data-point xi and its frequency is given in the following table:

In case the table is not clear: the value 0 appears once in the dataset, the value 1 appears four times in the dataset, and so on. Find the maximum likelihood estimate for the parameter λ of the Poisson distribution given this dataset.

A published solution is not available for this question yet.

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Question 134 NAT · 1.0 marks

Consider following common data and answer the given subquestions:

What will be the output of the following code snippet?

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

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Question 135 NAT · 1.0 marks

Consider following common data and answer the given subquestions:

What will be the output of the following code snippet?

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

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Question 136 NAT · 2.0 marks

Consider following common data and answer the given subquestions:

What will be the output of the following code snippet?

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

Report a correction for Q136

Question 137 NAT · 2.0 marks

Consider following common data and answer the given subquestions:

What will be the output of the following code snippet?

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

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Question 138 MSQ · 2.0 marks

Consider following common data and answer the given subquestions:

Given the data, which of the following options will provide the same output?

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A published solution is not available for this question yet.

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Question 139 MSQ · 2.0 marks

Consider following common data and answer the given subquestions:

If you would like to see the most frequent car manufacturers in the dataset, which of the following can be used?

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A published solution is not available for this question yet.

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Question 140 MSQ · 2.0 marks

Which of the following choice(s) are correct ?

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Null values cannot be interpreted by the model hence we need to handle them accordingly.

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Null values cannot be replaced because we can not manipulate the dataset.

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We should let the sklearn or software automatically decide how to handle different kinds of missing values.

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Different types of representation of missing values could be seen in the dataset.

A published solution is not available for this question yet.

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Question 141 MSQ · 2.0 marks

Which of the following options are true about Pearson correlation matrix ?

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6406532775075. Source diagram or notation

A published solution is not available for this question yet.

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Question 142 MSQ · 3.0 marks

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A published solution is not available for this question yet.

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Question 143 MCQ · 2.0 marks

We need to preprocess the data before using it for model building due to which of the following reasons ?

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Due to errors in data capture, data may contain outliers or missing values.

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Different features may be at different scales.

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Data contains non numerical features.

6406532775079.

All of these

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Question 144 MCQ · 3.0 marks

Consider following data and answer the given subquestions:

Each row represents a data point. There are exactly 4 points. The index of points starts from 0 and ends at 3 (included).

Which of the following pairs have the highest euclidean distance? Note: take care of the missing values and adjust accordingly. The options refer to the indices of points.

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1 and 2

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0 and 2

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1 and 3

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2 and 3

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0 and 1

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There is a tie between two or more options.

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None of these.

A published solution is not available for this question yet.

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Question 145 MCQ · 2.0 marks

Consider following data and answer the given subquestions:

Each row represents a data point. There are exactly 4 points. The index of points starts from 0 and ends at 3 (included).

Which of the following pairs have the smallest euclidean distance? Note: take care of the missing values and adjust accordingly. The options refer to the indices of points.

6406532775087.

1 and 2

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0 and 2

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1 and 3

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2 and 3

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0 and 1

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There is a tie between two or more options.

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None of these.

A published solution is not available for this question yet.

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Question 146 NAT · 2.0 marks

Consider following data and code snippet:

Based on the above data, answer the given subquestions.

What will be the output of the following code snippet:

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

Report a correction for Q146

Question 147 NAT · 2.0 marks

Consider following data and code snippet:

Based on the above data, answer the given subquestions.

What will be the output of the following code snippet:

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

Report a correction for Q147

Question 148 NAT · 2.0 marks

Consider following data and code snippet:

Based on the above data, answer the given subquestions.

What will be the output of the following code snippet:

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

Report a correction for Q148

Question 149 NAT · 2.0 marks

Consider following data and code snippet:

Based on the above data, answer the given subquestions.

What will be the output of the following code snippet:

Enter -1, if you think the above code snippet will generate an error.

A published solution is not available for this question yet.

Report a correction for Q149

Question 150 MSQ · 2.0 marks

Consider following data and code snippet:

Based on the above data, answer the given subquestions.

Which of the following can be used to get the simpleimputer object?

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A published solution is not available for this question yet.

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Question 151 MCQ · 2.0 marks

Go through the code snippet given below and answer the given subquestions.

Which of the following options will be the output of the given code?

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A published solution is not available for this question yet.

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Question 152 MCQ · 2.0 marks

Go through the code snippet given below and answer the given subquestions.

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-0.528

6406532775110.

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0.528

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Given code will return an error

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Question 153 MCQ · 3.0 marks

Consider the following code:

Which of the following may be the correct output of the above code?:

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A published solution is not available for this question yet.

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Question 154 MCQ · 3.0 marks

Consider the following code:

Which of the following is more likely to be true?

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A published solution is not available for this question yet.

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Question 155 NAT · 2.0 marks

What will be the output of the following code ?

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Question 156 MCQ · 2.0 marks

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It controls the learning rate of the stochastic regressor during training.

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It determines the maximum number of iterations for the training process.

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It defines the fraction of the validation set used for early stopping.

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It specifies the tolerance level for early stopping based on the change in the validation error.

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Question 157 MSQ · 2.0 marks

Consider the following code block and if needed make appropriate assumptions:

Which of the following may be appropriate to be filled in the blank space value for scoring parameter?

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**System Commands** **Section Id :** 64065359217 **Section Number :** 10 **Section type :** Online **Mandatory or Optional :** Mandatory **Number of Questions :** 16 **Number of Questions to be attempted :** 16 **Section Marks :** 100 **Display Number Panel :** Yes **Section Negative Marks :** 0 **Group All Questions :** No **Enable Mark as Answered Mark for Review and** No **Clear Response :** **Section Maximum Duration :** 0 **Section Minimum Duration :** 0 **Section Time In :** Minutes **Maximum Instruction Time :** 0

A published solution is not available for this question yet.

Report a correction for Q157