Question 9 please show work with explanation The lift ratio of an association ru

Question

Question 9 please show work with explanation

The lift ratio of an association rule with a confidence value of 0.43 and in which the consequent occurs in 2 out of 10 cases is

1

0.72

2.15

1.75

Question 10 please show work with explanation

Exhibit 4-1. A large data set on Toledo workers was collected and the first three workers are characterized by

Worker

Age

Hourly Wage

Female

Union

High School

1

33

$20

0

0

1

2

30

$24

0

1

1

3

36

$16

1

0

0

where Female=1 if a worker is a female Female=0 otherwise

   Union=1 if a worker belongs to a union    Union=0 otherwise

   High school=1 if a worker has a high school degree High school=0 otherwise

For the entire data set the average age is 32, the standard deviation of the age is 8, the average hourly wage is $18, and the standard deviation of the hourly wage is $5

Refer to Exhibit 4-1. What is the Euclidean distance for Workers 1 and 3 based on Age, Hourly Wage, and gender?

5.000

4.050

2.050

5.099

Question 11 please show work with explanation

Refer to Exhibit 4-1. What is the centroid of the cluster consisting of Workers 1 and 3 based on Age and Hourly Wage?

(33, $20)

(31.5, $22)

(32, $22)

(34.5, $18)

Question 12 please show work with explanation

Refer to Exhibit 4-1. What is the normalized (standardized) Euclidean distance for Workers 1 and 2 based on Age and Hourly Wage?

2.392

0.884

0.251

1.767

Question 13 please show work with explanation

Refer to Exhibit 4-1. What is the centroid of the cluster consisting of Workers 1 and 2 based on normalized (standardized) data on Age and Hourly Wage?

(-0.0625, 0.8)

(0.884, 1.2)

(-0.25, 0.8)

(0.125, 0.4)

Question 14 please show work with explanation

Refer to Exhibit 4-1. What is the matching coefficient for Workers 1 and 3 based on Female, Union, and High School?

1

1/3

2/3

0

Question 15 please show work with explanation

Refer to Exhibit 4-1. What is Jaccard’s coefficient for Workers 2 and 3 based on Female, Union, and High School?

1/3

2/3

1/2

0

1

0.72

2.15

1.75

Explanation / Answer

Question 9

Ans: C) 2.15
Explanation:
Here lift ratio= confidence /(support of consequent total number of transactions)
We are given,
confidence= 0.43
support of consequent/total number of transactions= 6/10
lift ratio = 0.43/(2/10) = 2.15

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