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Topic 7-1
Standard Error (SE) = Standard deviation / sqrt( n )
CI ( Confidence Interval ) = mean +- Z-score * SE
Lower – CI = Z-score * SE
Z- test
95% CI in Z-score = -1.96 to 1.96
T-test
95% CI in Z-score = -2.306 to 2.306
Topic 7-4
Question 1
#Apply Laplace to resolve the Zero-frequency-problem
Question 2
Question 3
# K nearest neighbour have 2 approaches : 1) majority vote ( Euclidean Distance)
2) Distance weight approach
#Rank ( Low -> High )
# Rank ( High -> Low )
Question 4
Question 5
Question 6
Topic 7-5
Question 1 and 2
Ans:
Topic 7-6
Ans: 3 / 4 = 0.75
Minimum support = support count / total transactions
0.06 = support count / 5
Support count = 3
Generate Association Rule
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