Recommender Systems Complete Course Beginner to Advanced - Project 2: Movie Recommendation System Using Collaborative Fi

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Information Technology (IT), Architecture, Social Studies
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What function is used to find the number of unique users in a dataset?
average()
count()
sum()
length()
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to ensure that only unique entries are considered in a column?
distinct()
unique()
filter()
map()
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are the unique users and movies displayed in the output?
Using a loop
Using a list
Using formatted strings
Using a dictionary
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of grouping the dataset by the rating column?
To filter out low ratings
To find the count of each rating level
To calculate the average rating
To sort the ratings
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the size method return when applied to a grouped dataset?
The count of each group
The sum of all ratings
The average rating value
The total number of ratings
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you multiply the number of users by the number of items?
It results in a negative number
It results in zero
It results in a very large number
It results in a small number
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the plan for unsatisfied numbers in the dataset?
To ignore them
To give them a 0 rating
To average them
To delete them
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