Here is Market Basket data for 1,000 transactions at a Drug Store.Use the table below to answer the following questions.

-Refer to the table above.What is the definition of confidence for Drug B with reference to Drug A?
A)The probability that Drug A will be purchased.
B)The probability that Drug B will be purchased.
C)The probability that both Drug A and Drug B will be purchased.
D)The probability that Drug A will be purchased given that Drug B has been purchased.
E)The probability that Drug B will be purchased given that Drug A has been purchased.

Question

Here is Market Basket data for 1,000 transactions at a Drug Store.Use the table below to answer the following questions.
 
-Refer to the table above.What is the definition of confidence for Drug B with reference to Drug A?
A)The probability that Drug A will be purchased. 
B)The probability that Drug B will be purchased. 
C)The probability that both Drug A and Drug B will be purchased. 
D)The probability that Drug A will be purchased given that Drug B has been purchased. 
E)The probability that Drug B will be purchased given that Drug A has been purchased.

Quizplus · Accepted Answer

Confidence for Drug B with reference to Drug A is the probability that Drug B will be purchased given that Drug A has been purchased.

Here Is Market Basket Data for 1,000 Transactions at a Drug