
ML Quiz 2
Authored by Anik Chowdhury
Computers
11th Grade - Professional Development
Used 19+ times

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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classification accuracy alone can be misleading if you have ________ number of observations in each class.
A equal
A correct
A wrong
An unequal
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The confusion matrix visualizes the ____ of a classifier by comparing the actual and predicted classes.
Connectivity
Comparativity
Accuracy
Stability
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
We have a data-set where we are predicting number of people who have more than $1000 in their bank account. Consider a data-set with 200 observations i.e. n=200 from the above matrix
Out of 200 cases, our classification model predicted “YES” 125 times, and “NO” 65 times.
Out of 200 cases, our classification model predicted “YES” 135 times, and “NO” 60 times.
Out of 200 cases, our classification model predicted “YES” 135 times, and “NO” 65 times.
Out of 200 cases, our classification model predicted “YES” 135 times, and “NO” 5 times.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From the above Table
In reality, there are totally 125 accounts who have a balance more than $1000 and 10 accounts with balance - less than $1000
In reality, there are totally 60 accounts who have a balance more than $1000 and 70 accounts with balance - less than $1000
In reality, there are totally 135 accounts who have a balance more than $1000 and 70 accounts with balance - less than $1000
In reality, there are totally 130 accounts who have a balance more than $1000 and 70 accounts with balance - less than $1000
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Machine learning classification metrics like “Accuracy” give ___ useful information.
More
Less
Perfect
Accurate
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
High entropy means that the partitions in classification are
Not pure
Useful
Pure
Useless
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A confusion matrix is used for classification tasks where the output of the algorithm is in ……. class/classes
Two
More than three
One
Two or more
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