First, let me thank any in advance who are able to offer assistance. I am having some challenges with a two part question determining the probability of shoppers buying specific items. Below are the questions and what I have worked out so far:

7598 people were asked about their recent shopping habits. 1496 people said that they had bought a designer purse in the last year. 551 people said that they had bought designer sunglasses in the last year. 6282 said that they had bought neither a designer purse nor designer sunglasses.

- How many people bought at least one of the two?

The total surveyed- total with no purchase= total purchasers of at least one

7598-6282= 1316

-How many people bought a designer purse AND designer sunglasses?

The second part is what confuses me. This is where I am having problems. I cannot seem to isolate either the sunglasses or the purses to get grasp on where the overlap is. I know that this cannot exceed 1316 people total, but I don't know where to start.