Exhibit 9-2. The scatter chart below displays 6 observations of a training set p
ID: 3218760 • Letter: E
Question
Exhibit 9-2. The scatter chart below displays 6 observations of a training set plotted according to the values of 2 quantitative variables (x1 and x2 expressed in the same units) that characterize the 6 observations. (The normalization of these values is not needed.). Three observations (#1,#2,#3) belong to Class 1, and the other three (#4, #5, #6) to Class 0. The chart also displays a new observation (#7) that must be classified using the k-NN method with the cutoff value of 0.5.
Question 12
Refer to Exhibit 9-2. For k = 1, Observation 7 should be classified in
neither Class 1nor Class 0
Class 0
Class 1
both Class 1 and Class 0
Question 13
Refer to Exhibit 9-2. For k = 2, Observation 7 should be classified in
Class 0
neither Class 1nor Class 0
Class 1
both Class 1 and Class 0
Refer to Exhibit 9-2. For k = 3, Observation 7 should be classified in
both Class 1 and Class 0
Class 1
Class 0
neither Class 1nor Class 0
A.neither Class 1nor Class 0
B.Class 0
C.Class 1
D.both Class 1 and Class 0
3.5 2.5 1.5 0.5 1.5 2.5 3.5 4.5 X1Explanation / Answer
1)
Answer: C
That is, class 1.
2)
Answer: C
That is, class 1.
3)
Answer: B
That is, class 1.
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