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## Homework Statement

You are a real estate salesperson and you currently have 10 listings. Past experience has shown that you will sell approximately 70% of your listings. If sales are independent:

What is the probability that you make exactly 8 sales?

## Homework Equations

## The Attempt at a Solution

I was wondering why 70% would be used as the the probability for the event of interest... I thought the probability would be the probability of ONE listing that would sell and not 7/10 of your listings. Can someone explain?