Machine Learning Basics 0017

1.           How do you handle missing or corrupted data in a dataset?

• Drop missing rows or columns

• Replace missing values with Mean/Median/

  Mode

• Assign a unique category to missing

  values

• All of the above

Which of the following is correct way to create a dataframe?

A. df = pd.dataframe(dict1)

B.df = pd.Dataframe(dict1)

C.df = pd.dataFrame(dict1)

D.df = pd.DataFrame(dict1)

• A

• B

• C

• D

Which of the following are common classes of problems in machine learning?

• Regression

• Classification

• Clustering

• All of the above

Machine learning is a subset of which of the following

• Deep Learning

• Data Learning

• Artificial Intelligence

• None of the above

What is the application of machine learning methods to a large database called?

• Big data computing

• Data Mining

• Artificial Intelligence

• Internet of Things

Which of the options contain the following lines?

1.           import pandas as pd

df = pd.read_csv("filename.csv") df.head()

• Loading a dataset into python

  environment

  See the first five rows of a data frame in

  Python

• Checking the class of each variable in a

  pandas DataFrame

• Code to see the dimensions of a data frame in Python

• Function used to find missing values in a

  pandas DataFrame

If there is a dataframe named as "df" and we need to extract the first three rows and three columns of it, then which of the following statement is correct?

A. df.iloc[1:4,1:4]

B. df.iloc[1:3,1:3]

C df.iloc[0:2,0:2]

D.df.iloc[0:3,0:3]

• A

• B

• C

• D

A dataframe as two axis, where axis=0 respresents

A. Row

B.Column

C.Index

D. Values

• A

• B

• C

• D

There is a student whose name is "Raman" and he wants to access "Author" column from "Book" dataframe. Suggest the correct statement.

A. print(Book.Author)

B.print(Book[‘Author’])

C. Both are True

D.Both are False

• A

• B

• C

• D

What will be the output of the following code? import pandas as pd

s = pd.Series([1,2,3,4],index = ['a','b','c','d']) print s['c']

A.1

B. 2

C.3

D.4

E.Error

• A

• B

• C

• D

• E