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

Multiple Choice

Here is Market Basket data for 1,000 transactions at a Drug Store.All transactions involve 1 or 2 drugs.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 B will be purchased given that Drug A has been purchased.