Mary Jay is a salesperson for a cosmetics company that relies on direct marketing to sell its products. A classification method was developed to predict whether a customer will purchase if contacted with a targeted marketing pitch. This classification method generated output to create following decile-wise lift chart on a test set of 10,000 customers, 600 of whom actually purchased the product when solicited with targeted marketing.

Use the following information:

The height of the bar, that corresponds to the first decile, is 2.50.

The height of the bar, that corresponds to the second decile, is 2.45.

The height of the bar, that corresponds to the third decile, is 1.95.

(a)	In the top 1,000 customers deemed most likely to purchase in response to direct marketing, how many actually made a purchase?
150	purchasers
(b)	In the top 3,000 customers deemed most likely to purchase in response to direct marketing, how many actually made a purchase?
??	purchasers

What is B purchasers amount?